(A) Calvin cycle (B) Cyclic electron transfer (C) Non-cyclic electron transfer (D) Photorespiration (E) Cellular respiration

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "(A) Calvin cycle (B) Cyclic electron transfer (C) Non-cyclic electron transfer (D) Photorespiration (E) Cellular respiration"

Transcription

1 AP Biology - Problem Drill 08: Photosynthesis No. 1 of 10 #01 1. What term does the statement below refer to? In a photosynthesis process, an electron is excited from P700 and delivered to its receptor, and then it travels through a series of pigments and releases energy in the final form of ATP; the electron then returns to P700 in a lower energy status. (A) Calvin cycle (B) Cyclic electron transfer (C) Non-cyclic electron transfer (D) Photorespiration (E) Cellular respiration The Calvin cycle is a series of reactions that take place in the stoma of chloroplasts, fixing CO 2 and making carbohydrates. B. Correct! Cyclic electron transfer is involved in returning the electrons back to their original state. Non-cyclic electron transfer involves two photosystems, and electrons are not recycled. Some plants can use oxygen and release carbon dioxide under hot and dry weather, and this mimics the effect of respiration. Cellular respiration does not involve a photosystem. In cyclic electron transfer, electrons from excited chlorophyll travel through several cytochrome receptors and finally return back to chlorophyll at a lower energy status. This is a major electron transfer mechanism in photosynthetic bacteria. It is a primitive form that involves one photosystem: P700, photosystem I (PS I). The electron cycles and generates ATP during the process. The correct answer is (B).

2 No. 2 of Which of the following statements only applies to C4 plants? #02 (A) Chlorophyll is excited by photons. (B) 3GPA is reduced and energized to produce high-energy G3P. (C) Carbon dioxide is shuttled from one cell type to another. (D) Protons are pumped into the thylakoid compartment from stroma. (E) C4 plants do not use the sunlight. Chlorophyll is needed to excite the photons in all plants. 3PGA is used to make G3P in all plants. C. Correct! Carbon dioxide is fixed and shuttled between mesophyl cells and bundle sheath cells. Protons are pumped into the thylakoid compartment in all types of plants. Both C4 and C3 plants use sunlight. The C4 pathway is an adaptation to conserve the carbon dioxide released via photorespiration. CO 2 incorporated forms oxaloacetate (4C). This pathway is found in mesophyll cells, which captures CO 2 and delivers it to bundle sheath cells. The bundle sheath cells take the CO 2 for the Calvin cycle. The correct answer is (C).

3 No. 3 of Which of the following reactions does not occur during the dark reaction of photosynthesis? #03 (A) Utilization of NADPH (B) Utilization of ATP (C) Water is split into O 2 and protons (D) G3P production (E) Utilization of CO 2 NADPH is used to change 3PGA to G3P. ATP is used to change 3PGA to G3P. C. Correct! Water is utilized in the light reaction and not the dark reaction. 3PGA is made into G3P. In the first step, carbon dioxide is fixed into 3PGA. There are 3 phases in the Calvin Cycle: Phase 1: Carbon Fixation, in which CO 2 is incorporated into a five-carbon sugar, called ribulose bisphosphate (RuBP). Phase 2: Reduction, in which ATP and NADPH 2 from the light reactions are used to convert 3-phosphoglycerate to glyceraldehyde 3-phosphate, precursors of glucose. Phase 3: Regeneration, in which more ATP is used to convert some of the G3P back to RuBP the acceptor for CO2. This completes the cycle. The correct answer is (C).

4 No. 4 of The direct energy for generating ATP in the light reaction is. #04 (A) The absorption of photons by chlorophyll. (B) Oxidation of NADPH. (C) Electron transfer between PS II and PS I. (D) Proton gradient across the thylakoid membranes, generated by electron transfer. (E) Oxidation of water. The absorption of photons does not directly provide the energy for ATP synthesis. The oxidation of NADPH is used in the dark reaction of photosynthesis. The transfer of electrons helps to generate a proton gradient. D. Correct! The proton gradient generated by the oxidation of compounds is directly responsible for ATP synthesis. Oxidation of water is needed to help replenish electrons. PSII absorbs light. An electron is excited to a higher energy level, which is then transmitted through a light-harvesting complex (LHCII) until it reaches PSI. The electron is captured by the primary electron acceptor. The water will be oxidized to replace the electron. The correct answer is (D).

5 No. 5 of Which of the following statements is true about photorespiration? #05 (A) Oxygen is consumed (B) ATP is utilized (C) No CO 2 fixation (D) No G3P production (E) All of the above Oxygen is consumed during photorespiration. However, it is not the only true statement here. ATP is utilized during photorespiration. However, it is not the only true statement here. Carbon dioxide is not fixed during photorespiration. However, it is not the only true statement here. G3P is not produced during photorespiration. However, it is not the only true statement here. E. Correct! All of these are consequences of photorespiration. In the presence of low CO 2 and high O 2, Rubisco activity is switched into fixing O 2, generating no G3P (no energy). It takes in O 2 and releases CO 2. This is similar to respiration and, therefore, it is called photorespiration. The correct answer is (E).

6 No. 6 of What is a network of chlorophyll and other pigments arranged together that captures photons of energy and amplifies them? #06 (A) Grana (B) Thylakoid (C) Stroma (D) Photosystem (E) Reaction center Grana are thylakoids arranged in stacks. The thylakoid is a phospholipid bilayer membrane-bound compartment internal to chloroplasts where light reaction occurs. Stroma is the fluid surrounding the thylakoids site of dark reaction. D. Correct! A photosystem is a network of chlorophyll pigments that captures photons. The reaction center is part of the photosystem. There are two types of photosystems. Photosystem I: Contains P700, a chlorophyll molecule, which has peak absorption at 700 nm, the reaction center of chlorophyll a. A primitive form and the only type for photosynthetic bacteria. Uses iron-sulfur (Fe-S) cluster proteins as its terminal electron receptor Photosystem II: Combines with PS I in plants to make the photosynthetic more effective. Contains P680, responsible for water splitting generating oxygen and proton. Uses quinone as its terminal electron receptor. The correct answer is (D).

7 No. 7 of The equation of photosynthesis takes carbon dioxide, water and energy from the sunlight and generates glucose and what? #07 (A) Water (B) Oxygen (C) NADH (D) A & B (E) All of the above Water is a reactant and not a product. B. Correct! Oxygen is generated during photosynthesis. NADH is not generated during photosynthesis. Although oxygen is generated, water is not, so this cannot be the correct answer. Only one of the answers above is the correct answer. The correct equation for photosynthesis is: 6 CO 2 (gas) + 12 H 2 O(liquid) + photons C 6 H 12 O 6 (aqueus) + 6 O 2 (gas) + 6H 2 O(liquid). The correct answer is (B).

8 No. 8 of Which of the following statement is incorrect? #08 (A) In phase 1 of the Calvin cycle, carbon dioxide is incorporated into RuBP. (B) In phase 2 of the Calvin cycle, ATP and NADH are used. (C) In phase 2 of the Calvin cycle, 3-PGA is converted into G3P. (D) In phase 3 of the Calvin cycle, some of the G3P is converted back into RuBP. (E) All of these statements are correct. The statement is correct, but it is not the only correct statement about the dark reaction. The statement is correct, but it is not the only correct statement about the dark reaction. The statement is correct, but it is not the only correct statement about the dark reaction. The statement is correct, but it is not the only correct statement about the dark reaction. E. Correct! Of the choices listed above, all of them are correct. There are 3 phases in the Calvin Cycle: Phase 1: Carbon Fixation, in which CO 2 is incorporated into a five-carbon sugar, called ribulose bisphosphate (RuBP). Phase 2: Reduction, in which ATP and NADPH 2 from the light reactions are used to convert 3-phosphoglycerate to glyceraldehyde 3-phosphate, precursors of glucose. Phase 3: Regeneration, in which more ATP is used to convert some of the G3P back to RuBP the acceptor for CO2. This completes the cycle. The correct answer is (E).

9 No. 9 of Which of the following statements is correct? #09 (A) PS I contains a chlorophyll pigment that best absorbs light at 680nm. (B) The final electron acceptor for PS II is an iron-sulfur cluster protein. (C) The final electron acceptor for PS I is a quinine. (D) PS II contains a chlorophyll pigment that best absorbs light at 700nm. (E) None of these statements are correct. PS I best absorbs at 700nm. The final electron acceptor for PS II is a quinine. The final electron acceptor for PS I is an iron-sulfur cluster protein. PSII best absorbs at 680nm. E. Correct! All of these statements are incorrect. Photosystem I: Contains P700, a chlorophyll molecule, which has peak absorption at 700 nm, the reaction center chlorophyll a. A primitive form and the only type for photosynthetic bacteria. Uses iron-sulfur (Fe-S) cluster proteins as its terminal electron receptor Photosystem II: Combines with PS I in plants to make the photosynthetic more effective. Contains P680, responsible for water splitting generating oxygen and proton Uses quinone as its terminal electron receptor. The correct answer is (E).

10 No. 10 of What is the process that plants can perform in the presence of low CO 2, in which they take in O 2 and release CO 2? #10 (A) Photophosphorylation (B) Cellular respiration (C) Light reaction (D) Dark reaction (E) Photorespiration Photophosphorylation is the process of making ATP using the energy from the sun to generate electrons for the electron transport chain. Cellular respiration takes in oxygen and releases carbon dioxide as a byproduct of ATP production. The light reaction does not use carbon dioxide and does not take in oxygen. The dark reaction does not release carbon dioxide. E. Correct! Photorespiration is the process where plants take in oxygen and release carbon dioxide. In the presence of low CO 2 and high O 2, Rubisco activity is switched into fixing O 2, generating no G3P (no energy). It takes in O 2 and releases CO 2, similar to respiration and, therefore, it is called photorespiration. The correct answer is (E).

Photosynthesis is the main route by which that energy enters the biosphere of the Earth.

Photosynthesis is the main route by which that energy enters the biosphere of the Earth. Chapter 5-Photosynthesis Photosynthesis is the main route by which that energy enters the biosphere of the Earth. To sustain and power life on Earth, the captured energy has to be released and used in

More information

Lecture 9: Photosynthesis

Lecture 9: Photosynthesis Lecture 9: Photosynthesis I. Characteristics of Light A. Light is composed of particles that travel as waves 1. Comprises a small part of the electromagnetic spectrum B. Radiation varies in wavelength

More information

AP Biology. Chloroplasts: sites of photosynthesis in plants

AP Biology. Chloroplasts: sites of photosynthesis in plants The summary equation of photosynthesis including the source and fate of the reactants and products. How leaf and chloroplast anatomy relates to photosynthesis. How photosystems convert solar energy to

More information

Photosynthesis. Chapter 8

Photosynthesis. Chapter 8 Photosynthesis Chapter 8 Photosynthesis Overview Energy for all life on Earth ultimately comes from photosynthesis 6CO 2 + 12H 2 O C 6 H 12 O 6 + 6H 2 O + 6O 2 Oxygenic photosynthesis is carried out by

More information

Metabolism 2 Photosynthesis

Metabolism 2 Photosynthesis Metabolism 2 Photosynthesis Light energy is trapped in the form of high energy electrons. High energy electrons are used to synthesize ATP and reduce CO 2 to form carbohydrates. Oxygen is produced as a

More information

Photosynthesis Overview

Photosynthesis Overview Photosynthesis 1 2 Photosynthesis Overview Energy for all life on Earth ultimately comes from photosynthesis 6CO 2 + 12H 2 O C 6 H 12 O 6 + 6H 2 O + 6O 2 Oxygenic photosynthesis is carried out by Cyanobacteria

More information

Photosynthesis. Photosynthesis is the process of harnessing the energy of sunlight to make carbohydrates (sugars).

Photosynthesis. Photosynthesis is the process of harnessing the energy of sunlight to make carbohydrates (sugars). Photosynthesis Photosynthesis is the process of harnessing the energy of sunlight to make carbohydrates (sugars). Plants do photosynthesis to make their own food (sugars) and are called, photoautotrophs.

More information

Harvesting energy: photosynthesis & cellular respiration part 1

Harvesting energy: photosynthesis & cellular respiration part 1 Harvesting energy: photosynthesis & cellular respiration part 1 Agenda I. Overview (Big Pictures) of Photosynthesis & Cellular Respiration II. Making Glucose - Photosynthesis III. Making ATP - Cellular

More information

Overview - the process that feeds the biosphere. Photosynthesis: transformation of solar energy into chemical energy.

Overview - the process that feeds the biosphere. Photosynthesis: transformation of solar energy into chemical energy. Chapter 7 Capturing Solar Energy: Photosynthesis Overview - the process that feeds the biosphere Photosynthesis: transformation of solar energy into chemical energy. Responsible for O 2 in our atmosphere

More information

Photosynthesis Overview. Photosynthesis Overview. Photosynthesis Overview. Photosynthesis

Photosynthesis Overview. Photosynthesis Overview. Photosynthesis Overview. Photosynthesis Photosynthesis Photosynthesis Overview Chapter 8 Energy for all life on Earth ultimately comes from photosynthesis. 6CO2 + 12H2O C6H12O6 + 6H2O + 6O2 Oxygenic photosynthesis is carried out by: cyanobacteria,

More information

The summary equation of photosynthesis including the source and fate of the reactants and products. How leaf and chloroplast anatomy relates to

The summary equation of photosynthesis including the source and fate of the reactants and products. How leaf and chloroplast anatomy relates to 1 The summary equation of photosynthesis including the source and fate of the reactants and products. How leaf and chloroplast anatomy relates to photosynthesis. How photosystems convert solar energy to

More information

Chapter 5: Photosynthesis: The Energy of Life pg : Pathways of Photosynthesis pg

Chapter 5: Photosynthesis: The Energy of Life pg : Pathways of Photosynthesis pg UNIT 2: Metabolic Processes Chapter 5: Photosynthesis: The Energy of Life pg. 210-240 5.2: Pathways of Photosynthesis pg. 220-228 Light Dependent Reactions Photosystem II and I are the two light capturing

More information

PHOTOSYNTHESIS. Chapter 10

PHOTOSYNTHESIS. Chapter 10 PHOTOSYNTHESIS Chapter 10 Modes of Nutrition Autotrophs self-feeders Capture free energy from physical sources in the environment Photosynthetic organisms = sunlight Chemosynthetic organisms = small inorganic

More information

Photosynthesis: Life from Light and Air

Photosynthesis: Life from Light and Air Photosynthesis: Life from Light and Air 2007-2008 Energy needs of life All life needs a constant input of energy consumers producers Heterotrophs (Animals) get their energy from eating others eat food

More information

8.2 Photosynthesis Draw and label a diagram showing the structure of a chloroplast as seen in electron micrographs

8.2 Photosynthesis Draw and label a diagram showing the structure of a chloroplast as seen in electron micrographs 8.2 Photosynthesis 8.2.1 - Draw and label a diagram showing the structure of a chloroplast as seen in electron micrographs double membrane starch grain grana thylakoid internal membrane - location of the

More information

Photosynthesis. Nearly all of the usable energy on this planet came, at one time or another, from the sun by the process of photosynthesis

Photosynthesis. Nearly all of the usable energy on this planet came, at one time or another, from the sun by the process of photosynthesis Photosynthesis Nearly all of the usable energy on this planet came, at one time or another, from the sun by the process of photosynthesis Photosynthesis 6CO 2 + 12H 2 O C 6 H 12 O 6 + 6O 2 + 6H 2 O Pigments

More information

THE BASICS OF PHOTOSYNTHESIS

THE BASICS OF PHOTOSYNTHESIS THE BASICS OF PHOTOSYNTHESIS Almost all plants are photosynthetic autotrophs, as are some bacteria and protists Autotrophs generate their own organic matter through photosynthesis Sunlight energy is transformed

More information

Photosynthesis and Life

Photosynthesis and Life 7-1 Chapter 7 Photosynthesis and Life During photosynthesis Organisms use the energy of light to build highenergy organic molecules. Plants, algae, and some bacteria can do this. Can make their own food

More information

Photosynthesis Overview

Photosynthesis Overview Photosynthesis Chapter 8 Photosynthesis Overview Energy for all life on Earth ultimately comes from photosynthesis. 6CO 2 + 12H 2 O C 6 H 12 O 6 + 6H 2 O + 6O 2 Oxygenic photosynthesis is carried out by:

More information

CHAPTER 8 PHOTOSYNTHESIS

CHAPTER 8 PHOTOSYNTHESIS CHAPTER 8 PHOTOSYNTHESIS Con. 8.1 Photosynthesis process by which plants use light to make food molecules from carbon dioxide and water (chlorophyll) 6CO 2 + 12H 2 O + Light C 6 H 12 O 6 + 6O 2 + 6H 2

More information

Chapter 7 Capturing Solar Energy: Photosynthesis. Chapter 7: Photosynthesis. What is Photosynthesis?

Chapter 7 Capturing Solar Energy: Photosynthesis. Chapter 7: Photosynthesis. What is Photosynthesis? Chapter 7 Capturing Solar Energy: Photosynthesis What is Photosynthesis? Answer: The capture of sunlight energy and the subsequent storage of that energy in the chemical bonds (e.g., glucose) Chemical

More information

Energy Conversions. Photosynthesis. Plants. Chloroplasts. Plant Pigments 10/13/2014. Chapter 10 Pg

Energy Conversions. Photosynthesis. Plants. Chloroplasts. Plant Pigments 10/13/2014. Chapter 10 Pg Energy Conversions Photosynthesis Chapter 10 Pg. 184 205 Life on Earth is solar-powered by autotrophs Autotrophs make their own food and have no need to consume other organisms. They are the ultimate source

More information

Chapter 10 Photosynthesis

Chapter 10 Photosynthesis Chapter 10 Photosynthesis Overview: The Process That Feeds the Biosphere Photosynthesis is the process that converts solar energy into chemical energy Photosynthesis occurs in plants, algae, certain other

More information

PHOTOSYNTHESIS. Light Reaction Calvin Cycle

PHOTOSYNTHESIS. Light Reaction Calvin Cycle PHOTOSYNTHESIS Light Reaction Calvin Cycle Photosynthesis Purpose: use energy from light to convert inorganic compounds into organic fuels that have stored potential energy in their carbon bonds Carbon

More information

Photosynthesis (Outline)

Photosynthesis (Outline) Photosynthesis (Outline) 1. Overview of photosynthesis 2. Producers, consumers, and decomposers of the ecosystem (source of carbon and energy) 3. Plant structures: organ, tissue, cells, sub-cellular organelle,

More information

Photosynthesis: Life from Light AP Biology

Photosynthesis: Life from Light AP Biology Photosynthesis: Life from Light Supporting a biosphere On global scale, photosynthesis is the most important process for the continuation of life on Earth u each year photosynthesis synthesizes 160 billion

More information

Photosynthesis. I. Photosynthesis overview A. Purpose B. Location. The light vs. the dark reaction Chloroplasts pigments A. Light absorption B.

Photosynthesis. I. Photosynthesis overview A. Purpose B. Location. The light vs. the dark reaction Chloroplasts pigments A. Light absorption B. Photosynthesis I. Photosynthesis overview A. Purpose B. Location II. III. The light vs. the dark reaction Chloroplasts pigments A. Light absorption B. Types IV. Light reactions A. Photosystems B. Photophosphorylation

More information

A. Structures of PS. Site of PS in plants: mostly in leaves in chloroplasts. Leaf cross section. Vein. Mesophyll CO 2 O 2. Stomata

A. Structures of PS. Site of PS in plants: mostly in leaves in chloroplasts. Leaf cross section. Vein. Mesophyll CO 2 O 2. Stomata PS Lecture Outline I. Introduction A. Structures B. Net Reaction II. Overview of PS A. Rxns in the chloroplast B. pigments III. Closer looks A. LD Rxns B. LI Rxns 1. non-cyclic e- flow 2. cyclic e- flow

More information

Photosynthesis

Photosynthesis Student Expectations: Cellular Energy Understand that cellular energy is temporarily stored in the nucleotide ATP (adenosine triphosphate) Describe how energy is released by ATP When the outer phosphate

More information

Just Like the Guy From Krypton Photosynthesis

Just Like the Guy From Krypton Photosynthesis Just Like the Guy From Krypton Photosynthesis An Overview of Photosynthesis Most of the energy used by almost all living cells ultimately comes from the sun plants, algae, and some bacteria capture the

More information

Located in the thylakoid membranes. Chlorophyll have Mg + in the center. Chlorophyll pigments harvest energy (photons) by absorbing certain

Located in the thylakoid membranes. Chlorophyll have Mg + in the center. Chlorophyll pigments harvest energy (photons) by absorbing certain a review Located in the thylakoid membranes. Chlorophyll have Mg + in the center. Chlorophyll pigments harvest energy (photons) by absorbing certain wavelengths (blue-420 nm and red-660 nm are most important).

More information

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for Chapter 10 Photosynthesis PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Overview:

More information

Photosynthesis 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2

Photosynthesis 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2 PHOTOSYNTHESIS Photosynthesis An anabolic, endergonic, carbon dioxide (CO 2 ) requiring process that uses light energy (photons) and water (H 2 O) to produce organic macromolecules (glucose). photons SUN

More information

Photosynthesis. Excitation of chlorophyll in a chloroplast

Photosynthesis. Excitation of chlorophyll in a chloroplast Photosynthesis The process of photosynthesis begins with light-absorbing pigments in plant cells. A pigment molecule is able to absorb the energy from light only within a narrow range of wavelengths. In

More information

PHOTOSYNTHESIS. Chapter 10

PHOTOSYNTHESIS. Chapter 10 PHOTOSYNTHESIS Chapter 10 Modes of Nutrition Autotrophs Capture from physical sources in the environment Photosynthetic organisms = sunlight Chemosynthetic organisms = small inorganic molecules (occurs

More information

Biology: Life on Earth

Biology: Life on Earth Biology: Life on Earth Eighth Edition Lecture for Chapter 7 Capturing Solar Energy: Photosynthesis Chapter 7 Outline 7.1 What Is Photosynthesis? p. 118 7.2 Light-Dependent Reactions: How Is Light Energy

More information

PHOTOSYNTHESIS. Botany Department B.N.D. College

PHOTOSYNTHESIS. Botany Department B.N.D. College PHOTOSYNTHESIS Botany Department B.N.D. College Photosynthesis An anabolic, endergonic, carbon dioxide (CO 2 ) requiring process that uses light energy (photons) and water (H 2 O) to produce organic macromolecules

More information

Chapter 10. Photosynthesis

Chapter 10. Photosynthesis Chapter 10 Photosynthesis Overview: The Process That Feeds the Biosphere Photosynthesis is the process that converts solar energy into chemical energy Directly or indirectly, photosynthesis nourishes almost

More information

1 P a g e h t t p s : / / w w w. c i e n o t e s. c o m / Photosynthesis (chapter 12):

1 P a g e h t t p s : / / w w w. c i e n o t e s. c o m / Photosynthesis (chapter 12): 1 P a g e h t t p s : / / w w w. c i e n o t e s. c o m / Photosynthesis (chapter 12): Photosynthesis is the fixation of CO 2 and its subsequent reduction to carbohydrate, using hydrogen from water, taking

More information

pigments AP BIOLOGY PHOTOSYNTHESIS Chapter 10 Light Reactions Visible light is part of electromagnetic spectrum

pigments AP BIOLOGY PHOTOSYNTHESIS Chapter 10 Light Reactions Visible light is part of electromagnetic spectrum AP BIOLOGY PHOTOSYNTHESIS Chapter 10 Light Reactions http://vilenski.org/science/safari/cellstructure/chloroplasts.html Sunlight is made up of many different wavelengths of light Your eyes see different

More information

Chapter 10: PHOTOSYNTHESIS

Chapter 10: PHOTOSYNTHESIS Chapter 10: PHOTOSYNTHESIS 1. Overview of Photosynthesis 2. Light Absorption 3. The Light Reactions 4. The Calvin Cycle 1. Overview of Photosynthesis Chapter Reading pp. 185-190, 206-207 What is Photosynthesis?

More information

Where It Starts - Photosynthesis

Where It Starts - Photosynthesis Where It Starts - Photosynthesis What Is Photosynthesis? The Rainbow Catchers Making ATP and NADPH Making Sugars Alternate Pathways What is Photosynthesis? Energy flow through ecosystems begins when photosynthesizers

More information

PHOTOSYNTHESIS Chapter 6

PHOTOSYNTHESIS Chapter 6 PHOTOSYNTHESIS Chapter 6 5.1 Matter and Energy Pathways in Living Systems Chapter 5 Photosynthesis & Cellular Respiration 1 2 5.1 Matter and Energy Pathways in Living Systems In this section you will:

More information

1 Which of the following organisms do NOT carry on photosynthesis?

1 Which of the following organisms do NOT carry on photosynthesis? 1 Which of the following organisms do NOT carry on photosynthesis? plants algae some bacteria 2 3 animals The correct description of the relationship between photosynthesis and the living world is. herbivores,

More information

Unit 4.2: Photosynthesis - Sugar as Food

Unit 4.2: Photosynthesis - Sugar as Food Unit 4.2: Photosynthesis - Sugar as Food Lesson Objectives Outline the stages of photosynthesis. Describe the chloroplast and its role in photosynthesis. List the steps of the light reactions. Describe

More information

Chapter 10 Photosynthesis

Chapter 10 Photosynthesis Chapter 10 Photosynthesis Autotrophs and Heterotrophs Autotrophs are organisms that make their own food. They obtain everything they need by using CO 2 and inorganic compounds from the environment. Heterotrophs

More information

Chapter 6. Capturing Solar Energy: Photosynthesis. Lectures by Gregory Ahearn. University of North Florida. Copyright 2009 Pearson Education, Inc.

Chapter 6. Capturing Solar Energy: Photosynthesis. Lectures by Gregory Ahearn. University of North Florida. Copyright 2009 Pearson Education, Inc. Chapter 6 Capturing Solar Energy: Photosynthesis Lectures by Gregory Ahearn University of North Florida Copyright 2009 Pearson Education, Inc. 6.1 What Is Photosynthesis? Life on earth depends on photosynthesis.

More information

Lecture Series 13 Photosynthesis: Energy from the Sun

Lecture Series 13 Photosynthesis: Energy from the Sun Lecture Series 13 Photosynthesis: Energy from the Sun Photosynthesis: Energy from the Sun A. Identifying Photosynthetic Reactants and Products B. The Two Pathways of Photosynthesis: An Overview C. Properties

More information

Overall, photosynthesis is the conversion of the Sun s energy to stored chemical energy. (glucose) The overall reaction for photosynthesis:

Overall, photosynthesis is the conversion of the Sun s energy to stored chemical energy. (glucose) The overall reaction for photosynthesis: A.P. Biology Chapter 10- Photosynthesis Scale: 0 - No understanding of the concept and chemical process of photosynthesis. 1- With help, a partial understanding of the reactants and products of the photosynthesis

More information

Photosynthesis (Outline)

Photosynthesis (Outline) Photosynthesis (Outline) 1. Overview of photosynthesis 2. Producers, consumers, and decomposers of the ecosystem (source of carbon and energy) (Autotrophs: photo-autotrophs, chemo-autotrophs, electro-autotrophs,

More information

Photosynthesis (Chapter 7 Outline) A. For life based on organic compounds, two questions can be raised:

Photosynthesis (Chapter 7 Outline) A. For life based on organic compounds, two questions can be raised: Photosynthesis (Chapter 7 Outline) Sun, Rain, and Survival A. For life based on organic compounds, two questions can be raised: 1. Where does the carbon come from? 2. Where does the energy come from to

More information

Photosynthesis in Detail. 3/19/2014 Averett

Photosynthesis in Detail. 3/19/2014 Averett Photosynthesis in Detail 1 In photosynthesis many chemical reactions, enzymes and ions work together in a precise order. Enzymes Biological catalyst Substance that initiates or speeds up the rate of a

More information

Chapter 7 PHOTOSYNTHESIS

Chapter 7 PHOTOSYNTHESIS Chapter 7 PHOTOSYNTHESIS Photosynthesis Photosynthesis is the process of harnessing energy from sunlight to produce sugars. Photosynthesis equation: Energy + 6 CO 2 + 6 H 2 O C 6 H 12 O 6 + 6 O 2 C 6 H

More information

Where does most of our society s energy come from (think of fossil fuels), how does that energy become fixed for human use?

Where does most of our society s energy come from (think of fossil fuels), how does that energy become fixed for human use? Where does most of our society s energy come from (think of fossil fuels), how does that energy become fixed for human use? The Photosynthesis equation 6 CO 2 + 12 H 2 O + Light energy C 6 H 12 O 6 +

More information

Chapter 8: Cellular Energy

Chapter 8: Cellular Energy Chapter 8: Cellular Energy Section 1: How Organisms Obtain Energy Transformation of Energy All cellular activities require Energy!! ( The ability to do work). The study of flow and the transformation of

More information

CHAPTER 13 : PHOTOSYNTHESIS IN HIGHER PLANTS K C MEENA PGT BIOLOGY KV VIKASPURI II SHIFT

CHAPTER 13 : PHOTOSYNTHESIS IN HIGHER PLANTS K C MEENA PGT BIOLOGY KV VIKASPURI II SHIFT CHAPTER 13 : PHOTOSYNTHESIS IN HIGHER PLANTS K C MEENA PGT BIOLOGY KV VIKASPURI II SHIFT Photosynthesis is a Physic o chemical process, uses light energy to synthesis organic compounds (sugar). Importance

More information

8.1 Photosynthesis and Energy

8.1 Photosynthesis and Energy BIOL 100 Ch. 8 1 8.1 Photosynthesis and Energy Photosynthesis and Energy Photosynthesis Making food from light energy Photoautotrophs Use CO2 and water to make sugars Made life possible as we know it Provides

More information

Chapter 7: Photosynthesis

Chapter 7: Photosynthesis Chapter 7: Photosynthesis Electromagnetic Spectrum Shortest wavelength Longest wavelength Gamma rays X-rays UV radiation Visible light Infrared radiation Microwaves Radio waves Photons Packets of light

More information

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for Chapter 10 Photosynthesis PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Copyright

More information

PHOTOSYNTHESIS CHAPTER 7. Where It Starts - Photosynthesis

PHOTOSYNTHESIS CHAPTER 7. Where It Starts - Photosynthesis PHOTOSYNTHESIS CHAPTER 7 Where It Starts - Photosynthesis IMPACTS, ISSUES: SUNLIGHT AND SURVIVAL Plants are autotrophs, or self-nourishing organisms The first autotrophs filled Earth s atmosphere with

More information

AP Biology. Warm-up. Photosynthesis: Life from Light and Air. Energy needs of life. Energy needs of life. Objective: Warm-up:

AP Biology. Warm-up. Photosynthesis: Life from Light and Air. Energy needs of life. Energy needs of life. Objective: Warm-up: Warm-up Objective: Explain how photosynthesis converts light energy into chemical energy. Warm-up: In the light reactions, what is the electron donor? Where do the electrons end up? 2006-2007 Photosynthesis:

More information

1. Photosynthesis is the process of making a simple organic molecule from inorganic compounds (molecules) utilizing light energy.

1. Photosynthesis is the process of making a simple organic molecule from inorganic compounds (molecules) utilizing light energy. PHOTOSYNTHESIS A. INTRODUCTION 1. Photosynthesis is the process of making a simple organic molecule from inorganic compounds (molecules) utilizing light energy. a. It takes energy input for synthesis.

More information

2015 AP Biology PRETEST Unit 3: Cellular Energetics Week of October

2015 AP Biology PRETEST Unit 3: Cellular Energetics Week of October Name: Class: _ Date: _ 2015 AP Biology PRETEST Unit 3: Cellular Energetics Week of 19-23 October Multiple Choice Identify the choice that best completes the statement or answers the question. 1) Which

More information

Life on Earth is solar powered. Photosynthesis => conversion of light energy to chemical energy (stored in sugars and other organic molecules).

Life on Earth is solar powered. Photosynthesis => conversion of light energy to chemical energy (stored in sugars and other organic molecules). Photosynthesis Life on Earth is solar powered. Photosynthesis => conversion of light energy to chemical energy (stored in sugars and other organic molecules). Organisms obtain organic compounds by one

More information

Outline - Photosynthesis

Outline - Photosynthesis Outlin Photosynthesis Photosynthesis 1. An Overview of Photosynthesis & Respiration 2. Autotrophs and producers 3. Electromagnetic Spectrum & light energy 4. Chloroplasts: Structure and Function 5. Photosynthetic

More information

1. Plants and other autotrophs are the producers of the biosphere

1. Plants and other autotrophs are the producers of the biosphere 1. Plants and other autotrophs are the producers of the biosphere Photosynthesis nourishes almost all of the living world directly or indirectly. All organisms require organic compounds for energy and

More information

1. Plants and other autotrophs are the producers of the biosphere

1. Plants and other autotrophs are the producers of the biosphere 1. Plants and other autotrophs are the producers of the biosphere Photosynthesis nourishes almost all of the living world directly or indirectly. All organisms require organic compounds for energy and

More information

8 Photosynthesis CAMPBELL BIOLOGY IN FOCUS. Urry Cain Wasserman Minorsky Jackson Reece

8 Photosynthesis CAMPBELL BIOLOGY IN FOCUS. Urry Cain Wasserman Minorsky Jackson Reece CAMPBELL BIOLOGY IN FOCUS Urry Cain Wasserman Minorsky Jackson Reece 8 Photosynthesis Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge Objective: You will be able to contrast respiration

More information

Photosynthesis Lecture 7 Fall Photosynthesis. Photosynthesis. The Chloroplast. Photosynthetic prokaryotes. The Chloroplast

Photosynthesis Lecture 7 Fall Photosynthesis. Photosynthesis. The Chloroplast. Photosynthetic prokaryotes. The Chloroplast Photosynthesis Lecture 7 Fall 2008 Photosynthesis Photosynthesis The process by which light energy from the sun is converted into chemical energy 1 Photosynthesis Inputs CO 2 Gas exchange occurs through

More information

Bio 111 Study Guide Chapter 10 Photosynthesis

Bio 111 Study Guide Chapter 10 Photosynthesis Bio 111 Study Guide Chapter 10 Photosynthesis BEFORE CLASS: Reading: Read the whole chapter from p. 185-207. You can skip the topic of cyclic electron flow on p. 196-197. Figure 10.18 puts all of the light

More information

Bio 111 Study Guide Chapter 8 Photosynthesis

Bio 111 Study Guide Chapter 8 Photosynthesis Bio 111 Study Guide Chapter 8 Photosynthesis BEFORE CLASS: Reading: Read the whole chapter from pp. 161-179. Figure 8.16 puts all of the light reactions together for you. Study it and understand it well!

More information

LIGHT DEPENDENT & INDEPENDENT REACTIONS

LIGHT DEPENDENT & INDEPENDENT REACTIONS LIGHT DEPENDENT & INDEPENDENT REACTIONS Photosynthesis is a two stage process Light dependent reactions o requires DIRECT light energy omakes energy carrier molecules that are used in the dark reaction

More information

Section 1 The Light Reactions. Section 2 The Calvin Cycle. Resources

Section 1 The Light Reactions. Section 2 The Calvin Cycle. Resources How to Use This Presentation To View the presentation as a slideshow with effects select View on the menu bar and click on Slide Show. To advance through the presentation, click the right-arrow key or

More information

Photosynthesis: Life from Light and Air

Photosynthesis: Life from Light and Air http://www.youtube.com/watch?v=wi60tqa8jfe Photosynthesis: Life from Light and Air 2011-2012 Energy needs of life All life needs a constant input of energy consumers producers Heterotrophs (Animals) obtain

More information

Photosynthesis Part I: Overview & The Light-Dependent Reac<ons

Photosynthesis Part I: Overview & The Light-Dependent Reac<ons Photosynthesis Part I: Overview & The Light-Dependent Reac

More information

Photosynthesis 05/03/2012 INTRODUCTION: Summary Reaction for Photosynthesis: CO 2 : H 2 O: chlorophyll:

Photosynthesis 05/03/2012 INTRODUCTION: Summary Reaction for Photosynthesis: CO 2 : H 2 O: chlorophyll: Photosynthesis INTRODUCTION: metabolic process occurring in green plants, algae, some protists and cyanobacteria Photosynthesis is an PROCESS (building organic molecules which store radiant energy as chemical

More information

Photosynthesis and Cellular Respiration

Photosynthesis and Cellular Respiration Photosynthesis and Cellular Respiration Photosynthesis and Cellular Respiration All cellular activities require energy. Directly or indirectly nearly all energy for life comes from the sun. Autotrophs:

More information

Chapter 8 PHOTOSYNTHESIS Chapter # Chapter Title PowerPoint Image Slideshow

Chapter 8 PHOTOSYNTHESIS Chapter # Chapter Title PowerPoint Image Slideshow COLLEGE BIOLOGY PHYSICS Chapter 8 PHOTOSYNTHESIS Chapter # Chapter Title PowerPoint Image Slideshow Figure 8.0 Photosynthesis Figure 8.1 Earth s distribution of photosynthesis as seen via chlorophyll a

More information

PHOTOSYNTHESIS. https://www.youtube.com/watch?v=pme blshpbsu

PHOTOSYNTHESIS. https://www.youtube.com/watch?v=pme blshpbsu PHOTOSYNTHESIS https://www.youtube.com/watch?v=pme blshpbsu Energy needs of life All life needs a constant input of energy Heterotrophs (Animals) get their energy from eating others eat food = other organisms

More information

Chapter 7. Introduction. Introduction. Photosynthesis: Using Light to Make Food. Plants, algae, and certain prokaryotes

Chapter 7. Introduction. Introduction. Photosynthesis: Using Light to Make Food. Plants, algae, and certain prokaryotes Chapter 7 hotosynthesis: Using to Make Food oweroint Lectures for Campbell Biology: Concepts & Connections, Seventh Edition Reece, Taylor, Simon, and Dickey Lecture by Edward J. Zalisko Introduction lants,

More information

AP Biology

AP Biology Chapter 10. Photosynthesis: Life from Light Energy needs of life All life needs a constant input of energy Heterotrophs get their energy from eating others consumers of other organisms consume organic

More information

AP Biology

AP Biology Chapter 10. Photosynthesis: Life from Light Energy needs of life All life needs a constant input of energy Heterotrophs get their energy from eating others consumers of other organisms consume organic

More information

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for

Photosynthesis. Chapter 10. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for Chapter 10 Photosynthesis PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Overview:

More information

WJEC UNIT 3. ATP & Photosynthesis. Tyrone. R.L. John

WJEC UNIT 3. ATP & Photosynthesis. Tyrone. R.L. John WJEC UNIT 3 ATP & Photosynthesis 1 Adenosine Triphosphate (ATP) Revision from unit 1 1. ATP is a nucleotide. Label the components of the ATP molecule below: In the space below draw a simplified diagram

More information

6.3 Overview of Photosynthesis

6.3 Overview of Photosynthesis 6.3 Overview of Photosynthesis Chloroplast location of photosynthesis in plants and protists 3 membranes 2 make up the stroma Semifluid matrix Location of sugar production 1 makes up the thylakoid membrane

More information

Endosymbiotic Theory. p

Endosymbiotic Theory. p Endosymbiotic Theory p. 427-428 The Endosymbiotic Theory Review: What is a theory? What is the difference between prokaryotic and eukaryotic cells? The endosymbiotic theory is the idea that a long time

More information

Respiration and Photosynthesis

Respiration and Photosynthesis Respiration and Photosynthesis Cellular Respiration Glycolysis The Krebs Cycle Electron Transport Chains Anabolic Pathway Photosynthesis Calvin Cycle Flow of Energy Energy is needed to support all forms

More information

Ch. 10- Photosynthesis: Life from Light and Air

Ch. 10- Photosynthesis: Life from Light and Air Ch. 10- Photosynthesis: Life from Light and Air 2007-2008 Ch. 10 Photosynthesis: Life from Light and Air 2007-2008 Energy needs of life All life needs a constant input of energy consumers Heterotrophs

More information

AP Biology. Photosynthesis

AP Biology. Photosynthesis Photosynthesis Redox Reactions break bonds & move electrons from one molecule to another as electrons move they carry energy with them that energy is stored in another bond, released as heat or harvested

More information

The conversion of usable sunlight energy into chemical energy is associated with the action of the green pigment chlorophyll.

The conversion of usable sunlight energy into chemical energy is associated with the action of the green pigment chlorophyll. Photosynthesis Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted

More information

NOTES: CH 10, part 3 Calvin Cycle (10.3) & Alternative Mechanisms of C-Fixation (10.4)

NOTES: CH 10, part 3 Calvin Cycle (10.3) & Alternative Mechanisms of C-Fixation (10.4) NOTES: CH 10, part 3 Calvin Cycle (10.3) & Alternative Mechanisms of C-Fixation (10.4) 10.3 - The Calvin cycle uses ATP and NADPH to convert CO 2 to sugar The Calvin cycle, like the citric acid cycle,

More information

Photosynthesis. Chapter 10. PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece

Photosynthesis. Chapter 10. PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Chapter 10 Photosynthesis PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Overview:

More information

Photosynthesis. All Materials Cmassengale

Photosynthesis. All Materials Cmassengale Photosynthesis All Materials Cmassengale I. Capturing the Energy of Life A. All organisms require energy B. Some organisms (autotrophs) obtain energy directly from the sun and store it in organic compounds

More information

THIS IS. In photosynthesis A) Carbon gets oxidized B) Carbon gets reduced C) Carbon gets metabolized D) Carbon gets digested

THIS IS. In photosynthesis A) Carbon gets oxidized B) Carbon gets reduced C) Carbon gets metabolized D) Carbon gets digested THIS IS With Your Host... table Column A Column B Column C Column D Column E Column F 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 In photosynthesis A)

More information

Photosynthesis: Chapt. 8

Photosynthesis: Chapt. 8 Respiration vs. Photosynthesis Photosynthesis and respiration as complementary processes in the living world. Photosynthesis uses the energy of sunlight to produce sugars and other organic molecules. These

More information

PHOTOSYNTHESIS. The Details

PHOTOSYNTHESIS. The Details PHOTOSYNTHESIS The Details Photosynthesis is divided into 2 sequential processes: 1. The Light Dependent Reactions (stages 1 & 2) 2. The Light Independent Reactions (stage 3) a.k.a. the Calvin Cycle THE

More information

Chapter 8: Photosynthesis. Name Block

Chapter 8: Photosynthesis. Name Block Fred and Theresa Holtzclaw Updated by Chris Chou for Campbell Biology in Focus, 2nd Ed. (Oct. 2017) Name Block This chapter is as challenging as the one you just finished on cellular respiration. However,

More information

Photosynthesis. (in C 3 plants)

Photosynthesis. (in C 3 plants) Photosynthesis (in C 3 plants) WHAT DO I REMEMBER FROM GCSE ABOUT PHOTOSYNTHESIS? PS WS Photosynthesis uses sunlight energy to create complex organic compounds, initially glucose, from inorganic compounds.

More information

Name AP Biology Photosynthesis Notes Mrs. Laux Photosynthesis: Capturing Energy I. Chloroplasts A. Facts: 1. double membrane 2.

Name AP Biology Photosynthesis Notes Mrs. Laux Photosynthesis: Capturing Energy I. Chloroplasts A. Facts: 1. double membrane 2. Photosynthesis: Capturing Energy I. Chloroplasts A. Facts: 1. double membrane 2. not part of endomembrane system 3. semi-autonomous organelles, grow and reproduce 4. found in plants, algae, cyanobacteria,

More information