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Adenosine triphosphate

BIO CH 8

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metabolism
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cellular respiration
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Enzyme catalysis
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Adenosine triphosphate
Endergonic reaction
ATP hydrolysis
energy

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_chap_7_cell_respiration.ppt

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cellular respiration
Glycolysis
Substrate-level phosphorylation
Citric acid cycle
Chemiosmosis
Adenosine triphosphate
Oxidative phosphorylation
metabolism
Electron transport chain
Beta oxidation
Nicotinamide adenine dinucleotide
Fermentation

0 7 Cellular Respiration and Fermentation Overview: Life Is Work that Requires Energy Living cells require energy from outside sources Some animals, such as the giraffe, obtain energy by eating plants, and some animals feed on other organisms that eat plants ? 2014 Pearson Education, Inc. Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O2 and organic molecules, which are used as fuel for cellular respiration Cells use chemical energy stored in organic molecules to regenerate ATP, which powers work ? 2014 Pearson Education, Inc. Animation: Carbon Cycle Carbon Cycle Figure 7.2 Light energy ECOSYSTEM Photosynthesis in chloroplasts CO2 ? H2O Cellular respiration in mitochondria Organic molecules ? O2 ATP ATP powers most cellular work Heat

Campbell Biology Chapter 8 Outline

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Chemistry
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Enzymes
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Enzyme
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Adenosine triphosphate
ATP hydrolysis

Mica Piro Chapter 8: An Introduction to Metabolism An organism?s Metabolism Transforms Matter and Energy, Subject to the Laws of Thermodynamics (8.1) The totality of an organism?s chemical reactions is called metabolism It is an emergent property of life that arises from orderly interactions between molecules Organization of the Chemistry of Life into Metabolic Pathways A metabolic pathway begins with a specific molecule, which is then altered in a series of defined steps, resulting in a certain product Each step is catalyzed by a specific enzyme Metabolism as a whole manages the material and energy resources of the cell Some pathways release energy by breaking down complex molecules to simpler compounds?these degraditive processes are called catabolic pathways, or breakdown pathways

Energy in a Cell

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Adenosine triphosphate
Glycolysis
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Thylakoid
Anaerobic respiration
Fermentation

Chapter 9?Energy in a Cell Section 1?The Need for Energy Chemical bonds store energy that can be released when the bond is broken. Some bonds have more energy than others. Cell Energy Plants and other producers are able to trap light energy from the sun. Consumers obtain their energy from producers and other consumers. Cells need energy for active transport, cell division, movement and protein production, transport and storage. Your muscles and organs need energy to work. Energy is stored, at the cellular level, in the bonds of a molecule in your cells that any organelle can use. Adenosine triphosphate (ATP): composed of an adenosine molecule with three phosphate groups attached

Campbell Biology 9th Edition Chapters 6-9 Study Guide

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Chemiosmosis
Adenosine triphosphate
Oxidative phosphorylation
health

Chapter 8 Metabolism The totality of an organism?s chemical reactions An emergent property of life that arises from orderly interactions between molecules A chemical reaction is an alteration in the chemical properties of a molecule Often these chemical properties of a molecule are changed in a series of steps Ex: breaking down and changing the chemistry of what you eat A metabolic pathway is a series of steps that alter a molecule to manage material and energy It begins with a specific molecule, which is then altered in a series of defined steps, resulting in a certain product Therefore, metabolism is the management of materials and energy in an organism utilizing chemical reactions in specific pathways 2 Basic Metabolic Pathways

AP Bio Reading Guide CH 8

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Chemistry
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Enzymes
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Enzyme
Endergonic
Adenosine triphosphate
Nicotinamide adenine dinucleotide

Copyright ? 2011 Pearson Education, Inc. - 1 - Name_______________________Period___________ 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. The totality of an organism?s chemical reactions, consisting of catabolic and anabolic pathways, which manage the material and energy resources of the organism. 2. There are two types of reactions in metabolic pathways: anabolic and catabolic. a. Which reactions release energy? catabolic b. Which reactions consume energy? anabolic c. Which reactions build up larger molecules? catabolic d. Which reactions break down molecules? catabolic

Biology respiration objectives

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Chemistry
biochemistry
Chemiosmosis
Electron transport chain
metabolism
Oxidative phosphorylation
Adenosine triphosphate
Nicotinamide adenine dinucleotide
Photosynthesis
Substrate-level phosphorylation

Vocabulary Entropy- a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system Catabolism- the breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy; destructive metabolism. Anabolism- the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy; constructive metabolism. Cellular Respiration- the metabolic processes whereby certain organisms obtain energy from organic molecules Glycolysis- the breakdown of glucose by enzymes, releasing energy and pyruvic acid.

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