Big Idea #2. Biological Systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis
|
|
- Rosamond Johnston
- 5 years ago
- Views:
Transcription
1 Big Idea #2 Biological Systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis
2 Free Energy
3 Energy A very difficult to define quantity The ability to do something (i.e. move) 2 general types: Potential energy- stored energy Kinetic energy moving energy
4 Types of Potential Energy Gravitational Elastic Nuclear Electrical (separation of charges) Chemical (energy stored in chemical bonds)
5 Chemical Potential Energy
6 Kinetic Energy Moving objects Radiation (movement of light particles/waves) Thermal (heat, movement of particles Electrical (movement of electrons)
7 1 st Law of Thermodynamics Energy is never created or destroyed Energy is, however, transformed from one form to another i.e. wind s motion is converted to electricity, which is converted to heat and light energy in a light bulb
8 2 nd Law of Thermodynamics The entropy of an isolated system is always increasing Entropy is the amount of energy in an unusable form usually heat Systems are always losing usable forms of energy
9 What This Means In every conversion of energy- a lot of energy is lost as heat I.e. when you burn gas in your car- you lose a lot of energy as heat
10 Put Another Way Energy will be spread from areas of high energy to low energy I.e. heat will transfer from a hot pan to the air around it A moving object will lose its kinetic energy to other objects and heat Chemicals with a lot of potential energy tend to explode releasing heat and movement of other objects
11
12
13 Why Do Biologists Care About This Physics Stuff? Because living things obey these laws! Living things are always losing energy to their surroundings
14 We Require an Energy Input For living things to remain whole they must have an energy input I.e. organisms must get energy from sun, deep thermal vents or eating
15 Order and Organization Require Energy Things naturally break down to keep them from breaking down or to put them together requires an input of energy
16 Energy Coupling Processes that release energy are coupled to ones that require an input of energy More energy must be released than is required for the next reaction due to entropy (energy loss)
17 Example Flexing a muscle requires an energy input Breaking down food releases energy
18 Exergonic Reactions Release free energy Used in living things to provide energy for other processes
19 The Most Significant Exergonic Reaction ATP + H 2 O ADP + Pi + Energy This is the main molecule the body uses to transfer energy to where it is needed
20 Making ATP is an Endergonic Reaction It requires an input of energy Made in cellular respiration (input of chemical energy in food)
21 Uses of Free Energy Maintain body temperature (some organisms) Reproduction Growth Movement
22 Body Temperature Regulation Endothermy Use heat released by metabolic reactions to keep a stable temp I.e. humans Ectothermy Use external sources to try to maintain body temperature I.e. snakes/reptiles
23 Reproduction Requires a huge amount of energy! Many species only reproduce when energy is available I.e. most plants flower in the spring when sunlight energy is abundant
24 Growth Extra free energy not needed for cellular processes like movement and reproduction can be put to growth I.e. extra calories become stored fat
25 Energy Deprivation Mass is broken down to provide energy Eventually death will occur if there is no energy input
26 Smaller Organisms Require More Food Per Body Mass Smaller organisms have more surface area relative to volume, so they lose more heat So they must replenish that energy loss by eating more (relative to their body size) than larger animals do
27 The Trophic Levels Energy works its way up the food chain BUT at every level energy is being lost due to entropy So there is less energy available for higher levels of the food chain
28 Energy on an Ecological Level The more energy available for a population, the more it will grow I.e. rain forests have the most abundant plant life constant energy source
29
30 Loss of Energy There is rarely enough energy to support more than 3-4 steps on a food chain Very little energy left for top level carnivores- part of reason these animals so often are endangered
31 Energy Doesn t Cycle!!!!!!
Big Idea #2. Energy. Types of Potential Energy. Kinetic Energy. Chemical Potential Energy. Metabolism
Big Idea #2 Biological Systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis Life runs on chemical reactions rearranging atoms transforming
More informationMetabolism and Enzymes
Energy Basics Metabolism and Enzymes Chapter 5 Pgs. 77 86 Chapter 8 Pgs. 142 162 Energy is the capacity to cause change, and is required to do work. Very difficult to define quantity. Two types of energy:
More informationPre-AP Biology Energy Unit Study Guide Part I
Pre-AP Biology Energy Unit Study Guide Part I The Law of conservation of matter/mass : matter can not be created or destroyed However, matter may be rearranged in space In chemical reactions, the mass
More informationMetabolism and enzymes
Metabolism and enzymes 4-11-16 What is a chemical reaction? A chemical reaction is a process that forms or breaks the chemical bonds that hold atoms together Chemical reactions convert one set of chemical
More informationEnergetics Free Energy and Spontaneity. Fueling Life
Energetics Free Energy and Spontaneity Fueling Life Energy takes various forms MECHANICALL Energy, regardless of the form, can exist in two states potential kinetic Photosynthesis makes energy available
More informationMetabolism. AP Biology Chapter 8
Metabolism AP Biology Chapter 8 Energy Energy management Bioenergetics is the study of how organisms manage their energy resources. Energy is the capacity to do work. Energy exists in various forms Cells
More informationAP Biology Thermodyamics
AP Biology Thermodyamics Introduction to Thermodynamics The living cell is a chemical industry in miniature The totality of an organism s chemical reaction is called metabolism Metabolism involves managing
More informationLife Requires FREE ENERGY!
Life Requires FREE ENERGY! Ok, so Growth, reproduction and homeostasis of living systems requires free energy To be alive/stay living, you need to use energy. Duh But really, why is energy so important?
More informationChapter 5 Metabolism: Energy & Enzymes
Energy Energy is the capacity to do work Kinetic energy Energy of motion Potential energy Stored energy What do you use for energy? Where do you think the energy is stored these molecules? The BONDS! Every
More informationEnergy & Metabolism. Kinetic Energy. Potential Energy. Chapt. 6
Energy & Metabolism Chapt. 6 All living things require energy One of the primary functions of macromolecules is to provide E. Energy is the ability to do Work Energy exists in two forms: Kinetic Energy
More informationChapter 5. Energy Flow in the Life of a Cell
Chapter 5 Energy Flow in the Life of a Cell Including some materials from lectures by Gregory Ahearn University of North Florida Ammended by John Crocker Copyright 2009 Pearson Education, Inc.. Review
More informationMaking energy! ATP. The point is to make ATP!
Making energy! ATP The point is to make ATP! 2008-2009 The energy needs of life Organisms are endergonic systems What do we need energy for? synthesis building biomolecules reproduction movement active
More informationCHAPTER 5 WARM UPS. Mrs. Hilliard
CHAPTER 5 WARM UPS Mrs. Hilliard CHAPTER 5 VOCABULARY 1. Photosynthesis 2. Cellular respiration 3. Producer 4. Consumer 5. Decomposer 6. Food chain 7. Food web 8. Trophic level 9. Carbon cycle 10. Nitrogen-fixing
More informationwaste 1. Take in materials, convert into energy, and release 2. Chemical organization made of cells 3. Complex structural organization (orderly)
1 1. Take in materials, convert into energy, and release waste 2. Chemical organization made of cells 3. Complex structural organization (orderly) 4. Contain DNA-instructions for maintaining everything
More informationThermodynamics * Robert Bear David Rintoul. Based on The Laws of Thermodynamics by OpenStax. 1 The First Law of Thermodynamics.
OpenStax-CNX module: m47325 1 Thermodynamics * Robert Bear David Rintoul Based on The Laws of Thermodynamics by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution
More information3.1 Metabolism and Energy
3.1 Metabolism and Energy Metabolism All of the chemical reactions in a cell To transform matter and energy Step-by-step sequences metabolic pathways Metabolic Pathways Anabolic reactions Build large molecules
More informationHow Organisms Obtain Energy. Reading Preview. Transformation of Energy. Essential Questions
How Organisms Obtain Energy All living organisms use energy to carry out all biological processes. Real-World Reading Link New York City is sometimes called the city that never sleeps. Much like the nonstop
More informationEnergy Introduction M O S T O F T H I S S H O U L D B E A R E V I E W O F J U N I O R H I G H S C I E N C E.
Energy Introduction I N T H E S L I D E S T H A T F O L L O W W E W I L L R E V I E W S O M E B A S I C P R I N C I P L E S O F E C O L O G Y A N D E N E R G Y. M O S T O F T H I S S H O U L D B E A R
More informationLesson Overview. 9.1 Cellular Respiration: An Overview. Lesson Overview. Cellular Respiration: An Overview
Lesson Overview 9.1 Cellular Respiration: An Overview You feel weak when you are hungry because food serves as a source of energy. How does the food you eat get converted into a usable form of energy for
More informationThe 2 nd Law of Thermodynamics UNIT 2A
Warm-Up #1 Ms. Romano really wants to help you build your critical thinking skills. Why do you think she cares so much about this aspect of your learning? How will critical thinking skills help you in
More information1. Metabolism is the total of all the chemical processes that occur in an organism.
ENERGY AND METABOLISM A. ENERGY 1. Metabolism is the total of all the chemical processes that occur in an organism. a. Catabolism is the process of converting complex to simple or simpler molecules with
More informationAn Introduction to Metabolism
Chapter 8 An Introduction to Metabolism PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from
More informationActivity: Identifying forms of energy
Activity: Identifying forms of energy INTRODUCTION TO METABOLISM Metabolism Metabolism is the sum of all chemical reactions in an organism Metabolic pathway begins with a specific molecule and ends with
More informationLecture Series 9 Cellular Pathways That Harvest Chemical Energy
Lecture Series 9 Cellular Pathways That Harvest Chemical Energy Reading Assignments Review Chapter 3 Energy, Catalysis, & Biosynthesis Read Chapter 13 How Cells obtain Energy from Food Read Chapter 14
More informationCellular Respiration and Photosynthesis Test
Cellular Respiration and Photosynthesis Test 1. When bonds are made energy is, when bonds are broken energy is. A. stored / released C. released / stored B. used / not used D. created / destroyed 2. Aerobic
More informationEnergy and Cells. Appendix 1. The two primary energy transformations in plants are photosynthesis and respiration.
Energy and Cells Appendix 1 Energy transformations play a key role in all physical and chemical processes that occur in plants. Energy by itself is insufficient to drive plant growth and development. Enzymes
More informationPHOTOSYNTHESIS. Chapter 8
PHOTOSYNTHESIS Chapter 8 ENERGY & LIFE ENERGY The ability to do work. Can be stored in chemical bonds. Cells need energy to do things like active transport, dividing, moving, and producing and storing
More informationBiology Kevin Dees. Chapter 8 Introduction to Metabolism
Chapter 8 Introduction to Metabolism Defined as the sum total of the chemical reactions that occur in a living thing. Think of metabolism as a road map of thousands of different chemical reactions regulate
More informationAN INTRODUCTION TO METABOLISM. Metabolism, Energy, and Life
AN INTRODUCTION TO METABOLISM Metabolism, Energy, and Life 1. The chemistry of life is organized into metabolic pathways 2. Organisms transform energy 3. The energy transformations of life are subject
More informationUnit 4.1: Energy for Life
Unit 4.1: Energy for Life This caterpillar is busily munching its way through leaf after leaf. In fact, caterpillars do little more than eat, day and night. Like all living things, they need food to provide
More informationEnergy & Life PRE READING TASK. State the different types of Energy you know WHICH YOU SEE AROUND YOU, give some EXAMPLES.
Name: Class: Date: Energy & Life Grade 11A Science Related Reading/Physics Physics Gr11A PRE READING TASK TYPES OF ENERGY State the different types of Energy you know WHICH YOU SEE AROUND YOU, give some
More informationCHAPTER 8. An Introduction to Metabolism
CHAPTER 8 An Introduction to Metabolism WHAT YOU NEED TO KNOW: Examples of endergonic and exergonic reactions. The key role of ATP in energy coupling. That enzymes work by lowering the energy of activation.
More informationChapter 5. Directions and Rates of Biochemical Processes
Chapter 5 Directions and Rates of Biochemical Processes Key Questions What factors determine which way a reaction will go? What factors determine the rate of a chemical reaction? How do enzymes work? How
More informationHow Cells Work. Learning Objectives
How Cells Work Chapter 5 Learning Objectives 1. Physics tells us that in any energy transformation: a) energy is neither created nor destroyed, and b) there is always some energy lost in an unusable form
More informationActivating Strategy. AP Lesson #10. EQ: What is metabolism and what role does energy play in metabolism? How does energy move through an environment?
Activating Strategy Belief or Disbelief 1. 1 st Law of thermodynamics states that energy can be created and destroyed. 2. Anabolic reactions are reactions that break bonds between molecules. 3. Exergonic
More informationPhysiological Ecology. Physiological Ecology. Physiological Ecology. Nutrient and Energy Transfer. Introduction to Ecology
Physiological Ecology Outline Introduction to Ecology Evolution and Natural Selection Physiological Ecology Behavioural Ecology Physiological Ecology study of species needs and tolerances that determine
More informationShaw High School Winter Break Enrichment Packet
. Shaw High School Winter Break Enrichment Packet 1 Directions: Circle the letter of the correct answer. 1. The model shows water molecules interacting. The gray circles represent oxygen, and the white
More informationPhotosynthesis. Synthesizing food from light
Photosynthesis Synthesizing food from light 7.5A recognize that radiant energy from the Sun is transformed into chemical energy through the process of photosynthesis Consider a Hamburger.. It contains
More information8/25/ Opening Questions: What is ENERGY? Chapter 4 Energy and Life: How do you make it through your day? How does a plant eat?
Chapter 4 Energy and Life: 4.1 What is energy? 4.2 Energy flow 4.3 Sunlight is used to produce sugars 4.4 Photosynthesis has 2 linked stages 4.5 Light reactions: a closer look 4.6 Calvin cycle: a closer
More informationChapter 8 Introduction to Metabolism. Metabolism. The sum total of the chemical reactions that occur in a living thing.
Chapter 8 Introduction to Metabolism Metabolism The sum total of the chemical reactions that occur in a living thing. Think of metabolism as a road map of thousands of different chemical reactions Enzymes
More informationWHAT YOU NEED TO KNOW:
WHAT YOU NEED TO KNOW: Examples of endergonic and exergonic reactions. The key role of ATP in energy coupling. That enzymes work by lowering the energy of activation. The catalytic cycle of an enzyme that
More informationEnergy and Matter. Principles of Biology. Organisms interact with their environment, exchanging energy and matter. Topics Covered in this Module
Principles of Biology contents 2 Energy and Matter Organisms interact with their environment, exchanging energy and matter. The Sun. Most ecosystems receive their energy from the Sun's radiation. NASA/European
More informationDo Now. What is happening in the pictures below? How do you know? What evidence do you have to support your answer?
Do Now What is happening in the pictures below? How do you know? What evidence do you have to support your answer? Energy and Enzymes 5.10-5.16 Chemical Reactions Lab Clean Up Procedure Sample Data Do
More informationUNIT 2: CELLS Chapter 4: Cells and Energy
CORNELL NOTES Directions: You must create a minimum of 5 questions in this column per page (average). Use these to study your notes and prepare for tests and quizzes. Notes will be stamped after each assigned
More informationCHAPTER 1 Life: Biological Principles and the Science of Zoology
CHAPTER 1 Life: Biological Principles and the Science of Zoology 1-1 Zoology: The Uses of Principles The scientific study of animal life Does Life Have Defining Properties? No simple definition The history
More informationAn Introduction to Metabolism
An Introduction to Metabolism Chapter 8 Objectives Distinguish between the following pairs of terms: catabolic and anabolic pathways; kinetic and potential energy; open and closed systems; exergonic and
More informationChapter 5 Ground Rules of Metabolism Sections 1-5
Chapter 5 Ground Rules of Metabolism Sections 1-5 5.1 A Toast to Alcohol Dehydrogenase In the liver, the enzyme alcohol dehydrogenase breaks down toxic ethanol to acetaldehyde, an organic molecule even
More informationLearning Goals for 2.1
Learning Goals for 2.1 1.Trace the flow of energy from the sun through a living system. 2.Explain the process of photosynthesis 3.Give examples of producers and consumers. 4.Explain the relationship among
More informationTable of Contents. Chapter: Energy. Section 1: The Nature of Energy. Section 2: Conservation of Energy
Table of Contents Chapter: Energy Section 1: The Nature of Energy Section 2: 1 The Nature of Energy What is energy? Wherever you are sitting as you read this, changes are taking place lightbulbs are heating
More information2 4 Chemical Reactions and Enzymes Chemical Reactions
Chemical Reactions A chemical reaction occurs when chemical bonds are broken and reformed. Rust forms very slowly, while rocket fuel combustion is explosive! The significance of this comparison is that
More informationNOTES: FLOW OF ENERGY
NOTES: FLOW OF ENERGY Chapter 2 Principles of Ecology 2.2 Flow of Energy in an Ecosystem Energy in an Ecosystem Autotrophs (Producers) Organisms that use energy from sunlight or chemicals to produce food.
More informationUnit 1: Energy and Motion
4 4 Table of Contents Unit 1: Energy and Motion Chapter 4: Energy 4.1: The Nature of Energy 4.2: Conservation of Energy 4.1 The Nature of Energy Change Requires Energy Energy: ability to cause change.
More informationHighlights of chapter 5, section 2
Highlights of chapter 5, section 2 2 Conservation of Energy Changing Forms of Energy There are situations around us every day that involve energy changing from one form to another form. There are many
More informationChapter 6: Energy Flow in the Life of a Cell
Chapter 6: Energy Flow in the Life of a Cell What is Energy? Answer: The Capacity to do Work Types of Energy: 1) Kinetic Energy = Energy of movement Light (movement of photons) Heat (movement of particles)
More informationBIO 2 GO! Cellular Respiration and ATP 3135, 3137
BIO 2 GO! Cellular Respiration and ATP 3135, 3137 Cellular Respiration creates energy (ATP) for the cells to use for all of their life functions. Aerobic cellular respiration requires oxygen. Anaerobic
More informationI. Flow of Energy in Living Things II. Laws of Thermodynamics & Free Energy III. Activation Energy IV. Enzymes V. Reaction Coupling VI.
Chapter 6 Energy & Metabolism I. Flow of Energy in Living Things II. Laws of Thermodynamics & Free Energy III. Activation Energy IV. Enzymes V. Reaction Coupling VI. Metabolism I. Flow of Energy in Living
More information*The entropy of a system may decrease, but the entropy of the system plus its surroundings must always increase
AP biology Notes: Metabolism Metabolism = totality of an organism's chemical process concerned with managing cellular resources. Metabolic reactions are organized into pathways that are orderly series
More informationEnergy Transformation, Cellular Energy & Enzymes (Outline)
Energy Transformation, Cellular Energy & Enzymes (Outline) Energy conversions and recycling of matter in the ecosystem. Forms of energy: potential and kinetic energy The two laws of thermodynamic and definitions
More informationLesson Overview. Energy and Life. Energy of Life 2.1
Energy of Life 2.1 Learning Goals for 2.1 1.Trace the flow of energy from the sun through a living system. 2.Explain the process of photosynthesis 3.Give examples of producers and consumers. 4.Explain
More informationPhotosynthesis An Overview
Photosynthesis Photosynthesis An Overview Living things get energy from food Food is broken down and energy is stored as ATP Heterotrophs have to consume other organisms for energy Autotrophs are able
More informationIntroduction to Metabolism (Or Energy Management) Chapter 8
Introduction to Metabolism (Or Energy Management) Chapter 8 Metabolism of the chemical reactions in the organism Building up molecules Breaking down molecules Managing energy and materials Route to end-product
More informationChapter 8: An Introduction to Metabolism. 1. Energy & Chemical Reactions 2. ATP 3. Enzymes & Metabolic Pathways
Chapter 8: An Introduction to Metabolism 1. Energy & Chemical Reactions 2. ATP 3. Enzymes & Metabolic Pathways 1. Energy & Chemical Reactions 2 Basic Forms of Energy Kinetic Energy (KE) energy in motion
More informationBiology Slide 1 of 20
Biology 1 of 20 8-1 Energy and Life 2 of 20 8-1 Energy and Life Autotrophs and Heterotrophs Where do plants get the energy they need to produce food? Living things need energy to survive. This energy comes
More informationPotential, Kinetic, and Free Energy *
OpenStax-CNX module: m47326 1 Potential, Kinetic, and Free Energy * Robert Bear David Rintoul Based on Potential, Kinetic, Free, and Activation Energy by OpenStax This work is produced by OpenStax-CNX
More informationBIOLOGY 111. CHAPTER 7: Vital Harvest: Deriving Energy From Food
BIOLOGY 111 CHAPTER 7: Vital Harvest: Deriving Energy From Food Deriving Energy from Food: What is the best carbohydrate source (for energy) in our food? Glucose! Where is the energy stored in glucose?
More informationThe First Law of Thermodynamics
The First Law of Thermodynamics The first law of thermodynamics states that energy can be transferred or transformed, but cannot be created or destroyed. LEARNING OBJECTIVES Describe the first law of thermodynamics
More informationObjectives INTRODUCTION TO METABOLISM. Metabolism. Catabolic Pathways. Anabolic Pathways 3/6/2011. How to Read a Chemical Equation
Objectives INTRODUCTION TO METABOLISM. Chapter 8 Metabolism, Energy, and Life Explain the role of catabolic and anabolic pathways in cell metabolism Distinguish between kinetic and potential energy Distinguish
More informationEcology +Biology. Baker-2015
Ecology +Biology Baker-2015 Ecology is the scientific study of interactions among organisms and between organisms and their physical environment. Eco meaning home, and ology meaning the study of. Thus
More informationWhat Is Energy? Energy is the capacity to do work. First Law of Thermodynamics. Types of energy
What Is Energy? Energy is the capacity to do work. Synthesizing molecules Moving objects Generating heat and light Types of Kinetic: of movement otential: stored First Law of Thermodynamics Energy cannot
More informationEssential Question: How does energy flow through the processes of Photosynthesis and Cellular Respiration? Page 92. Cellular Respiration ENERGY ATP
Essential Question: How does energy flow through the processes of Photosynthesis and Cellular Respiration? Page 92 ATP Cellular Respiration ENERGY Photosynthesis Page 92 Essential Question: How does energy
More informationFlow of Energy. Flow of Energy. Energy and Metabolism. Chapter 6
Energy and Metabolism Chapter 6 Flow of Energy Energy: the capacity to do work -kinetic energy: the energy of motion -potential energy: stored energy Energy can take many forms: mechanical electric current
More informationOutline. Metabolism: Energy and Enzymes. Forms of Energy. Chapter 6
Metabolism: Energy and Enzymes Chapter 6 Forms of Energy Outline Laws of Thermodynamics Metabolic Reactions ATP Metabolic Pathways Energy of Activation Enzymes Photosynthesis Cellular Respiration 1 2 Forms
More informationAn Introduction to Metabolism
An Introduction to Metabolism The living cell is a microscopic factory where life s giant processes can be performed: -sugars to amino acids to proteins and vise versa -reactions to dismantle polymers
More informationWORK is. a FORCE is a push or a pull. when a FORCE moves an object. the ability to do WORK or cause change
ENERGY is the ability to do WORK or cause change Name 2 things that ARE energy or that HAVE energy WORK is when a FORCE moves an object a FORCE is a push or a pull There are two main kinds of energy POTENTIAL
More informationWarm-Up. Describe what happens to an enzyme placed at high temperatures.
Warm-Up Describe what happens to an enzyme placed at high temperatures. Food (carbohydrates, lipids and proteins) is essentially many carbon atoms bound together. Food (carbohydrates, lipids and proteins)
More informationEnergy Flow Through an Ecosystem
Energy Flow Through an Ecosystem Photosynthesis Cellular Respiration Food Chains Food Webs What is the process that uses the sun s energy to make simple sugars? Plants in Action Begins with the SUN Photosynthesis
More information10/4/2016. Matter, Energy, and Life
DISCLAIMER: Principles and concepts on atomic structure, the Periodic Table, atoms, ions, ionic and covalent compounds, metals, and nonmetals will not be covered in this course. You are expected to know
More information2. What is Energy? A. The ability to do work B. The Sun C. The Earth D. Photosynthesis
Photosynthesis and Cellular Respiration Pre/Post-Test Score /100 Standards Assessed: SC.6.L.14.3 Recognize and explore how cells of all organisms undergo similar processes to maintain homeostasis, including
More informationUse the PowerPoint found on my website to answer the following
Warm Up (11/8/17) Use the PowerPoint found on my website to answer the following 1. What occurs during each of the 3 stages of interphase (G1, S, G2)? 2. What are the four stages of mitosis? Briefly describe
More information2 4 Chemical Reactions and Enzymes
2 4 Chemical Reactions and Enzymes THINK ABOUT IT Living things are made up of chemical compounds, but chemistry isn t just what life is made of chemistry is also what life does. Everything that happens
More informationLecture 7: Enzymes and Energetics
Lecture 7: Enzymes and Energetics I. Biological Background A. Biological work requires energy 1. Energy is the capacity to do work a. Energy is expressed in units of work (kilojoules) or heat energy (kilocalories)
More informationBiology Test 2 BIO.2c-d: Metabolic Processes. For questions 1 16, choose the best answer. Indicate your answer on the Scantron and on the test.
Name Block Date Biology Test 2 BIO.2c-d: Metabolic Processes For questions 1 16, choose the best answer. Indicate your answer on the Scantron and on the test. 1. Scientists hypothesize that oxygen began
More informationChapter 8: An Introduction to Metabolism
Chapter 8: An Introduction to Metabolism Key Concepts 8.1 An organism s metabolism transforms matter and energy, subject to the laws of thermodynamics 8.2 The free-energy change of a reaction tells us
More informationEnergy & Life: Cellular Respiration PART I: HARVESTING CHEMICAL ENERGY
Energy & Life: Cellular Respiration PART I: HARVESTING CHEMICAL ENERGY Energy u Energy is not created or destroyed, it is transformed, changed. u E= ability to do work u Living things depend on energy
More informationMetabolism, Energy and Life
BSC 2010 - Exam I Lectures and Text ages I. Intro to Biology (2-29) II. Chemistry of Life Chemistry review (30-46) Water (47-57) Carbon (58-67) Macromolecules (68-91) III. Cells and Membranes Cell structure
More informationChapter 6: Energy Flow in the Life of a Cell
Chapter 6: Energy Flow in the Life of a Cell What is Energy? Answer: The capacity to do work Types of Energy: 1) Potential Energy = Stored energy Positional (stored in location of object) Chemical (stored
More informationCell Energetics - Practice Test
Name: Class: _ Date: _ Cell Energetics - Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is the source of energy used
More informationEnergy & Metabolism. Two states of energy. Low and high potential energy 9/23/2016. Energy
Energy & Metabolism Energy Life requires a constant flow of energy. Energy: The capacity to do work. Energy can be transferred to other objects or converted into different forms, but cannot be created
More informationHeat: the transfer of thermal energy from one substance to another. Electrons: the small particles inside an atom that have negative charge.
GRADE 5 0 Energy: the ability to cause change OR to do work Kinetic energy: energy of motion Potential energy: energy of position (stored energy) Thermal energy: the energy that moves particles of matter
More information2-4 Chemical Reactions and Enzymes
2-4 Chemical Reactions and Enzymes Living things, as you have seen, are made up of chemical compounds-some simple and some complex. But chemistry isn t just what life is made of-chemistry is also what
More informationMetabolism: Energy and Enzymes. February 24 th, 2012
Metabolism: Energy and Enzymes February 24 th, 2012 1 Outline Forms of Energy Laws of Thermodynamics Metabolic Reactions ATP Metabolic Pathways Energy of Activation Enzymes Photosynthesis Cellular Respiration
More informationAP 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 information1. List the steps of the scientific method in order:.
Name: Period: Biology: 1 st Semester Final Review Scientific Method, Tools of Science 1. List the steps of the scientific method in order:. 2. The use of the five senses to gather data is called:. 3. A
More informationChapter 3. Chemistry of Life
Chapter 3 Chemistry of Life Content Objectives Write these down! I will be able to identify: Where living things get energy. How chemical reactions occur. The functions of lipids. The importance of enzymes
More informationName Date Class. Photosynthesis and Respiration
Concept Mapping Photosynthesis and Respiration Complete the Venn diagram about photosynthesis and respiration. These terms may be used more than once: absorbs, Calvin cycle, chlorophyll, CO 2, H 2 O, Krebs
More informationChapter 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 informationEnergy and Mechanical Energy
Energy and Mechanical Energy Energy Review Remember: Energy is the ability to do work or effect change. Usually measured in joules (J) One joule represents the energy needed to move an object 1 m of distance
More informationChapter Cells and the Flow of Energy A. Forms of Energy 1. Energy is capacity to do work; cells continually use energy to develop, grow,
Chapter 6 6.1 Cells and the Flow of Energy A. Forms of Energy 1. Energy is capacity to do work; cells continually use energy to develop, grow, repair, reproduce, etc. 2. Kinetic energy is energy of motion;
More informationBiology: First year English Language Course 5 July 2018 Time allowed: 2 hours
Biology: First year English Language Course 5 July 2018 Time allowed: 2 hours 1. VERB FORMS (5 points). Give the correct forms of the verbs and, when required, pronouns or adverbs. You may have to use
More informationPhotosynthesis & Cellular Respiration. mages/life/chap1_2/ph otosyn.swf://
Photosynthesis & Cellular Respiration http://mrescience.com/i mages/life/chap1_2/ph otosyn.swf:// Photosynthesis Photosynthesis is a chemical reaction. Plants use light to make their own food. Where does
More information