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energy

biology in focus chapter 6 (AP)

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Chapter 6 An Introduction to Metabolism Forms of Energy Energy is the ability to do work or cause change Kinetic energy is the energy of motion Thermal energy is associated with the movement of atoms/molecules Heat is the transfer of thermal energy from one object to another Potential energy is the energy possessed by matter due to its location or structure Chemical energy is a type of potential energy Thermodynamics Thermodynamics is the study of energy transformations The First Law of Thermodynamics Energy can be transferred and/or transformed, but neither created nor destroyed The Second Law of Thermodynamics Energy transformations favor a more disorderly state, increasing entropy Entropy Entropy is a measure of the disorder, or randomness, of a system

Unit 5 Cell Energy Vocabulary

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Name:_______________________________ Test Date: __________ Per. _____ Unit 5-The Working Cell- Cellular Respiration and Photosynthesis Describe Metabolism What process in your body uses metabolism? What is an enzyme ( which biomolecule group do they belong to) ? How does it work? What does activation energy mean? Characteristics of Enzymes: What conditions do enzymes work best in? What happens to the enzyme if you raise the pH? An enzyme is like a Lock and Key . (Substrate-specific) What does that mean? A is _____________________ How do you know ?_ ________ _________________________ B is _____________________ How do you know ?_ _______ ________________________ C is _____________________ What is the importance of the active site?pg. 218-233 CELL METABOLISM- pg.220 Metabolism

APES PRACTICE EXAM

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Practice Exam for APEs Chapters 1,2,3,4,5,6,8 &28 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. A person who is primarily interested in the establishment of new wilderness areas would be considered a(n) a. ecologist. b. preservationist. c. restorationist. d. conservationist. ____ 2. Natural capital includes all of the following except a. sunlight. b. air. c. water. d. soil. ____ 3. All of the following illustrate exponential growth except a. the king who promised to double the number of grains of wheat he put on each successive square of a checkerboard. b. human population growth. c.

quiz 9

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Which of the following is (are) true of ligand-gated ion channels? a. They lead to changes in sodium and calcium concentrations in cells. b. They are important in the nervous system. c. They open or close in response to a chemical signal. d. Only A and B are true. e. A, B, and C are true. Which of the following can affect the rate of an enzymatic reaction a. pH b. temperature c. feedback inhibition d. A and B e. A, B and C A competitive inhibitor binds to an enzyme's a. active site b. allosteric binding site c. cooperative binding site d. A and B e. A, B and C Enzymes speed up chemical reactions by a. raising the energy of activation b. lowering the energy of activation c. lowering free energy d. increasing free energy e. B & D

BIO CH 8

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Campbell's Biology, 9e (Reece et al.) Chapter 8 An Introduction to Metabolism This chapter lays the foundations for the chapters on respiration and photosynthesis. Key concepts are as follows: The laws of thermodynamics govern energy transformations by living organisms, metabolic reactions couple energy-harvesting reactions to reactions that accomplish cellular work, and enzymes increase the rates of reaction. Understanding the properties of enzymes, how they work, and how their activities are regulated is necessary to achieve an understanding of metabolic pathways. Multiple-Choice Questions 1) Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? A) catalysis B) metabolism C) anabolism D) dehydration E) catabolism

Energy Notes

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preAP Chem 2013-2014 1 NOTES: Energy in Chemical Processes Name ______________________________ Period ________ Energy and Heat ? Energy is defined as the ability to do _________ or produce ___________; the sum of all potential and kinetic energy in a system is known as the internal energy of the system. It comes from the energy stored in ____________ (______________ energy) and from the ____________ of atoms and molecules (______________ energy). ? Heat is defined as the ______________ of energy from a warmer object to a cooler object. Do not confuse the terms heat and temperature. Heat is the _____________ of the energies of the molecules

Renewable resources notes

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RENEWABLE RESOURCES Name:____________________________ A. Renewable Resources: Resources that can be quickly ___________ 1) Solar Power ? Uses _______________________________ from the _______________________ to generate electricity Pros: - Solar Fuel is ?______________________________? - Does not ________________________________________ Cons: - Dependent on sunlight - _____________________________________________ to set up 2) Nuclear energy ? ______________________________________ apart heavy _________________________________ such as Uranium to release energy. Pros: - Produces ___________________________________ ___________________________________________________ of power

Metabolism

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Chapter 8 An Introduction to Metabolism Overview: The Energy of Life the living cell is a miniature factory where thousands of chemical reactions occur energy is converted in many ways some organisms convert energy into light ? bioluminescence Concept 8.1: An organisms metabolism transforms matter and energy, subject to the laws of thermodynamics metabolism is the totality of an organism?s chemical reactions, consisting of catabolic and anabolic pathways an emergent property arising from the interaction of molecules Organization of the Chemistry of Life into Metabolic Pathways a metabolic pathway is a series of chemical reactions that either builds a complex molecule (anabolic pathway) or breaks down a complex molecule into simpler compounds (catabolic pathway)

AP BIO Chapter 08

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Campbell's Biology, 9e (Reece et al.) Chapter 8 An Introduction to Metabolism This chapter lays the foundations for the chapters on respiration and photosynthesis. Key concepts are as follows: The laws of thermodynamics govern energy transformations by living organisms, metabolic reactions couple energy-harvesting reactions to reactions that accomplish cellular work, and enzymes increase the rates of reaction. Understanding the properties of enzymes, how they work, and how their activities are regulated is necessary to achieve an understanding of metabolic pathways. Multiple-Choice Questions 1) Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? A) catalysis B) metabolism C) anabolism D) dehydration E) catabolism

AP BIO CHP 8 CAMPBELL BIOLOGY 9e

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Campbell's Biology, 9e (Reece et al.) Chapter 8 An Introduction to Metabolism This chapter lays the foundations for the chapters on respiration and photosynthesis. Key concepts are as follows: The laws of thermodynamics govern energy transformations by living organisms, metabolic reactions couple energy-harvesting reactions to reactions that accomplish cellular work, and enzymes increase the rates of reaction. Understanding the properties of enzymes, how they work, and how their activities are regulated is necessary to achieve an understanding of metabolic pathways. Multiple-Choice Questions 1) Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? A) catalysis B) metabolism C) anabolism D) dehydration E) catabolism

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