How Cells Work. Learning Objectives
|
|
- Tyrone Patterson
- 5 years ago
- Views:
Transcription
1 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 such as heat. Explain what this means to living systems. 2. What is ATP and what is its role in cell metabolism. Describe the ATP cycle. 3. What are enzymes and what is their role in cell metabolism? What factors affect the efficiency of enzyme function? Give some examples of conditions that might interfere with normal metabolism (i.e. enzyme function). 4. Explain what is involved in redox reactions, and why this process is important in living systems. 5. Describe the relationship between photosynthesis and cellular respiration in the biosphere. 1
2 Total E = usable E + unusable E (heat) Capacity to do work Forms of energy Potential energy Kinetic energy What Is Energy? How would you describe the energy in a chemical bond? What type of energy drives osmosis? Energy Transformations Energy release is coupled to energy-requiring processes Cells use energy for: Chemical work Mechanical work Electrochemical work Reactants (describe) Energy Enzymes Coenzymes/Cofactors Products What molecule is the only one directly used by cells to perform work? Can some cellular processes be done without this molecule? Explain. 2
3 Energy Transformations First Law of Thermodynamics The total amount of energy in the universe remains constant Energy can undergo conversions from one form to another, but it cannot be created or destroyed Second Law of Thermodynamics No energy conversion is ever 100 percent efficient The total amount of energy is flowing from highenergy forms to forms lower in energy p. 74 One-Way Flow of Energy The sun is life s primary energy source Producers trap energy from the sun and convert it into chemical bond energy All organisms use the energy stored in the bonds of organic compounds to do work There is a tendency for increasing disorder (entropy) in the universe. How is it possible that living systems can resist this move toward disorder? How would you describe the molecules that contain food energy for other organisms (stable/unstable; how many bonds, etc)? p. 74 3
4 Activation Energy p. 78 For a chemical reaction to occur, some energy must be invested in the reactant(s) Some reactions have a net release of energy Some reactions have a net storage energy Enzymes make conditions more favorable, so less energy is needed to activate the reaction starting substance energy released by the reaction activation energy without enzyme activation energy with enzyme products Enzyme Function (review) Highly specific Very efficient speed up reaction up to 10 billion times faster have a maximum rate organize metabolic pathways Can be re-used (are unchanged by the reaction) Temperature & ph can affect the natural shape of any enzyme p. 78 4
5 Endergonic Reactions What does potential energy of molecules mean? p. 75 Product has more energy than reactants, and potential energy is stored. glucose, a high energy product low energy starting substances ENERGY IN + O 2 Anabolic (molecule building) reactions, e.g. ADP + P Name the reactants. What metabolic process does this describe? Exergonic Reactions p. 75 Products have less energy than starting substance, and energy is released to fuel cell processes. Catabolic (breakdown) reactions (e.g. digestion, ATP use) glucose, a high energy starting substance + O 2 ENERGY OUT low energy products Name the products. What metabolic process does this describe? 5
6 Red-Ox Reactions Oxidation is the loss of electrons from a molecule decreases its potential energy acceptor of the electron (often associated with H) is often oxygen (thus, described as oxidation ) Reduction is the gain of electrons by a molecule increases its potential energy In the body, oxidation-reduction reactions are coupled & occur simultaneously; tightly controlled by enzymes p. 7 LEO the Lion says GER Loss of Electrons is Oxidation Gain of Electrons is Reduction Main Metabolic Pathways in Ecosystems p. 77 CO 2 is reduced, to produce glucose (where does the energy come from to fuel these reactions?) glucose is oxidized, to produce ATP (what is the other form of energy released?)
7 The Role of ATP p. 75 Cells earn ATP in exergonic reactions Cells spend ATP in endergonic reactions Name some examples of cellular work. Are these energy transformations completely efficient? The Role of Coenzymes pp. 78, 80, 97 Co = with Shuttle molecules/ions from one reaction to the next (esp. H + & e - ) Unchanged Reusable Often made from vitamins Niacin NAD (NADP) Riboflavin FAD 7
Outline. 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 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 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 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 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 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 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 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 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 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 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 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 informationEnergy Transformation. Metabolism = total chemical reactions in cells.
Energy Transformation Metabolism = total chemical reactions in cells. metabole = change Metabolism is concerned with managing the material and energy resources of the cell -Catabolism -Anabolism -Catabolism
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 informationChapter 8 Notes. An Introduction to Metabolism
Chapter 8 Notes An Introduction to Metabolism Describe how allosteric regulators may inhibit or stimulate the activity of an enzyme. Objectives Distinguish between the following pairs of terms: catabolic
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 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 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 informationEnergy Transformation and Metabolism (Outline)
Energy Transformation and Metabolism (Outline) - Definitions & Laws of Thermodynamics - Overview of energy flow ecosystem - Biochemical processes: Anabolic/endergonic & Catabolic/exergonic - Chemical reactions
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 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 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 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 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 informationChapter 6. Ground Rules Of Metabolism
Chapter 6 Ground Rules Of Metabolism Alcohol Dehydrogenase An enzyme Breaks down ethanol and other toxic alcohols Allows humans to drink Metabolism Is the totality of an organism s chemical reactions Arises
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 informationPathways that Harvest and Store Chemical Energy
6 Pathways that Harvest and Store Chemical Energy Energy is stored in chemical bonds and can be released and transformed by metabolic pathways. Chemical energy available to do work is termed free energy
More informationChapter 6- An Introduction to Metabolism*
Chapter 6- An Introduction to Metabolism* *Lecture notes are to be used as a study guide only and do not represent the comprehensive information you will need to know for the exams. The Energy of Life
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 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 informationAn Introduction to Metabolism
Chapter 8 An Introduction to Metabolism Dr. Wendy Sera Houston Community College Biology 1406 Key Concepts in Chapter 8 1. An organism s metabolism transforms matter and energy, subject to the laws of
More informationGround Rules of Metabolism CHAPTER 6
Ground Rules of Metabolism CHAPTER 6 Antioxidants You ve heard the term. What s the big deal? Found naturally in many fruits and vegetables Added to many products What do they actually do? Antioxidants
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 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 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 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 informationAn Introduction to Metabolism
Chapter 8 1 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 informationAn Introduction to Metabolism
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 8 An Introduction to Metabolism
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 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 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 informationCellular Energy: Respiration. Goals: Anaerobic respiration
Cellular Energy: Respiration Anaerobic respiration Goals: Define and describe the 3 sets of chemical reactions that comprise aerobic cellular respiration Describe the types of anaerobic respiration Compare
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 informationBIOLOGICAL SCIENCE. Lecture Presentation by Cindy S. Malone, PhD, California State University Northridge. FIFTH EDITION Freeman Quillin Allison
BIOLOGICAL SCIENCE FIFTH EDITION Freeman Quillin Allison 8 Lecture Presentation by Cindy S. Malone, PhD, California State University Northridge Roadmap 8 In this chapter you will learn how Enzymes use
More informationBasic Concepts of Metabolism. Stages of Catabolism. Key intermediates 10/12/2015. Chapter 15, Stryer Short Course
Basic Concepts of Metabolism Chapter 15, Stryer Short Course Digestion Formation of key intermediate small molecules Formation of ATP Stages of Catabolism Key intermediates 1 Fundamental Needs for Energy
More informationTransformation of Energy! Energy is the ability to do work.! Thermodynamics is the study of the flow and transformation of energy in the universe.
Section 1 How Organisms Obtain Energy Transformation of Energy! Energy is the ability to do work.! Thermodynamics is the study of the flow and transformation of energy in the universe. Section 1 How Organisms
More informationAn Introduction to Metabolism. Chapter 8
An Introduction to Metabolism Chapter 8 METABOLISM I. Introduction All of an organism s chemical reactions Thousands of reactions in a cell Example: digest starch use sugar for energy and to build new
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 information2054, Chap. 8, page 1
2054, Chap. 8, page 1 I. Metabolism: Energetics, Enzymes, and Regulation (Chapter 8) A. Energetics and work 1. overview a. energy = ability to do work (1) chemical, transport, mechanical (2) ultimate source
More informationBIOLOGY 10/11/2014. An Introduction to Metabolism. Outline. Overview: The Energy of Life
8 An Introduction to Metabolism CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson Outline I. Forms of Energy II. Laws of Thermodynamics III. Energy and metabolism IV. ATP V. Enzymes
More information9/25/2011. Outline. Overview: The Energy of Life. I. Forms of Energy II. Laws of Thermodynamics III. Energy and metabolism IV. ATP V.
Chapter 8 Introduction to Metabolism Outline I. Forms of Energy II. Laws of Thermodynamics III. Energy and metabolism IV. ATP V. Enzymes Overview: The Energy of Life Figure 8.1 The living cell is a miniature
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 informationChapter 8: Energy and Metabolism
Chapter 8: Energy and Metabolism Why do organisms need energy? How do organisms manage their energy needs? Defining terms and issues: energy and thermodynamics metabolic reactions and energy transfers
More informationEnergy Flow in Cells - 1
Energy Flow in Cells - 1 Thousands of chemical reactions occur in our cells and tissues to keep us alive (and hopefully healthy). We have discussed some of the molecules of living organisms (carbohydrates,
More informationChapter 8: An Introduction to Metabolism
AP Biology Reading Guide Name Chapter 8: An Introduction to Metabolism Concept 8.1 An organism s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. 2.
More informationChapter 8: An Introduction to Metabolism
Chapter 8: An Introduction to Metabolism Name Period Concept 8.1 An organism s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. 2. There are two types
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 informationMetabolism, Energy and Life - 1
Metabolism, Energy and Life - 1 Thousands of chemical reactions occur in our cells and tissues to keep us alive (and hopefully healthy). Monomers are assembled into the macromolecules we need for cell
More informationCellular Respiration: Harvesting Chemical Energy. 9.1 Catabolic pathways yield energy by oxidizing organic fuels
Cellular Respiration: Harvesting Chemical Energy 9.1 Catabolic pathways yield energy by oxidizing organic fuels 9.2 Glycolysis harvests chemical energy by oxidizing glucose to pyruvate 9.3 The citric acid
More informationEnergy, Enzymes, and Metabolism. Energy, Enzymes, and Metabolism. A. Energy and Energy Conversions. A. Energy and Energy Conversions
Energy, Enzymes, and Metabolism Lecture Series 6 Energy, Enzymes, and Metabolism B. ATP: Transferring Energy in Cells D. Molecular Structure Determines Enzyme Fxn Energy is the capacity to do work (cause
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 informationUnit 3: Cellular Energetics Guided Reading Questions (50 pts total)
AP Biology Biology, Campbell and Reece, 10th Edition Adapted from chapter reading guides originally created by Lynn Miriello Name: Chapter 8 An Introduction to Metabolism Unit 3: Cellular Energetics Guided
More informationSection A: The Principles of Energy Harvest
CHAPTER 9 CELLULAR RESPIRATION: HARVESTING CHEMICAL ENERGY Section A: The Principles of Energy Harvest 1. Cellular respiration and fermentation are catabolic, energy-yielding pathways 2. Cells recycle
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 informationPrinciples of Bioenergetics. Lehninger 3 rd ed. Chapter 14
1 Principles of Bioenergetics Lehninger 3 rd ed. Chapter 14 2 Metabolism A highly coordinated cellular activity aimed at achieving the following goals: Obtain chemical energy. Convert nutrient molecules
More informationI. Enzymes as Catalysts Chapter 4
8/29/11 I. Enzymes as Catalysts Chapter 4 Enzymes and Energy Lecture PowerPoint Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Enzymes Activation Energy A class
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 informationCh 4: Cellular Metabolism, Part 1
Developed by John Gallagher, MS, DVM Ch 4: Cellular Metabolism, Part 1 Energy as it relates to Biology Energy for synthesis and movement Energy transformation Enzymes and how they speed reactions Metabolism
More informationBig 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, 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 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 informationChapter 8: An Introduction to Metabolism
Name Period Concept 8.1 An organism s metabolism transforms matter and energy, subject to the laws of thermodynamics 1. Define metabolism. 2. There are two types of reactions in metabolic pathways: anabolic
More informationMetabolism and Energy. Mrs. Stahl AP Biology
Metabolism and Energy Mrs. Stahl AP Biology The Energy of Life The living cell is a miniature chemical factory where thousands of reactions occur The cell extracts energy stored in sugars and other fuels
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 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 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 informationCh. 3 Metabolism and Enzymes
Ch. 3 Metabolism and Enzymes Originally prepared by Kim B. Foglia. Revised and adapted by Nhan A. Pham Flow of energy through life Life is built on chemical reactions that enable energy to flow through
More informationChapter 6: Energy and Metabolism
Chapter 6: Energy and Metabolism Student: 1. Oxidation and reduction reactions are chemical processes that result in a gain or loss in A) atoms. B) neutrons. C) electrons. D) molecules. E) protons. 2.
More informationAn Introduction to Metabolism
An Introduction to Metabolism I. All of an organism=s chemical reactions taken together is called metabolism. A. Metabolic pathways begin with a specific molecule, which is then altered in a series of
More information(kilo ) or heat energy (kilo ) C. Organisms carry out conversions between potential energy and kinetic energy 1. Potential energy is energy;
I. Biological work requires energy A. Energy is the to do work B. Energy is expressed in units of work (kilo ) or heat energy (kilo ) C. Organisms carry out conversions between potential energy and kinetic
More informationAn Introduction to Metabolism
Chapter 8 An Introduction to Metabolism Edited by Shawn Lester PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley
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 informationAn Introduction to Metabolism
CAMPBELL BIOLOGY IN FOCUS Urry Cain Wasserman Minorsky Jackson Reece 6 An Introduction to Metabolism Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge Overview: The Energy of Life The
More informationBe sure to understand:
Learning Targets & Focus Questions for Unit 6: Bioenergetics Chapter 8: Thermodynamics Chapter 9: Cell Resp Focus Q Ch. 10: Photosynthesis Chapter 8 (141-150) 1. I can explain how living systems adhere
More informationCellular Energy. How Organisms Obtain Energy Section 2: Photosynthesis Section 3: Cellular Respiration. Click on a lesson name to select.
Section 1: How Organisms Obtain Energy Section 2: Photosynthesis Section 3: Cellular Respiration Click on a lesson name to select. Section 1 How Organisms Obtain Energy Transformation of Energy Energy
More informationThis is an example of cellular respiration, which can be used to make beer and wine using different metabolic pathways For these reasons we call this
Chapter 6 Carvings from ancient Egypt show barley being crushed and mixed with water (left) and then put into closed vessels (centre) where airless conditions are suitable for the production of alcohol
More informationGiving you the energy you need!
Giving you the energy you need! Use your dominant hand Open and close the pin (with your thumb and forefinger) as many times as you can for 20 seconds while holding the other fingers straight out! Repeat
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 information2. The study of is the study of behavior (capture, storage, usage) of energy in living systems.
Cell Metabolism 1. Each of the significant properties of a cell, its growth, reproduction, and responsiveness to its environment requires. 2. The study of is the study of behavior (capture, storage, usage)
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 informationUnit 7 Part I: Introductions to Biochemistry
Unit 7 Part I: Introductions to Biochemistry Chemical Reactions, Enzymes and ATP 19-Mar-14 Averett 1 Chemical Reactions Chemical Reactions Process by which one set of chemicals is changed into another
More informationBIOLOGY. An Introduction to Metabolism CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson
CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 8 An Introduction to Metabolism Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick The Energy of Life The living
More informationBiological Chemistry and Metabolic Pathways
Biological Chemistry and Metabolic Pathways 1. Reaction a. Thermodynamics b. Kinetics 2. Enzyme a. Structure and Function b. Regulation of Activity c. Kinetics d. Inhibition 3. Metabolic Pathways a. REDOX
More informationChapter 6~ An Introduction to Metabolism
Chapter 6~ An Introduction to Metabolism Metabolism/Bioenergetics Metabolism: The totality of an organism s chemical processes; managing the material and energy resources of the cell Catabolic pathways:
More informationChapter 6 Active Reading Guide An Introduction to Metabolism
Name: AP Biology Mr. Croft Section 1 1. Define metabolism. Chapter 6 Active Reading Guide An Introduction to Metabolism 2. There are two types of reactions in metabolic pathways: anabolic and catabolic.
More informationAn Introduction to Metabolism
An Introduction to Metabolism PREFACE The living cell is a chemical factory with thousands of reactions taking place, many of them simultaneously This chapter is about matter and energy flow during life
More informationReview Questions - Lecture 5: Metabolism, Part 1
Review Questions - Lecture 5: Metabolism, Part 1 Questions: 1. What is metabolism? 2. What does it mean to say that a cell has emergent properties? 3. Define metabolic pathway. 4. What is the difference
More informationChapter 11 Photosynthesis
Chapter 11 Photosynthesis 2.2 Cell Metabolism Learning Objectives 2.2.4 Photosynthesis 1. Definition, balanced equation and role of "photosynthesis". 2. An explanation of the process of photosynthesis.
More informationAP Biology Cellular Respiration
AP Biology Cellular Respiration The bonds between H and C represents a shared pair of electrons These are high-energy electrons This represents chemical potential energy Hydro-carbons posses a lot of chemical
More informationMETABOLISM CHAPTER 04 BIO 211: ANATOMY & PHYSIOLOGY I. Dr. Lawrence G. Altman Some illustrations are courtesy of McGraw-Hill.
BIO 211: ANATOMY & PHYSIOLOGY I CHAPTER 04 1 Please wait 20 seconds before starting slide show. Mouse click or Arrow keys to navigate. Hit ESCAPE Key to exit. CELLULAR METABOLISM Dr. Lawrence G. Altman
More information