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Respiration - Indiana University
Respiration - Indiana University

... – Other lipids may be essential • e.g. insects cannot synthesize cholesterol ...
CHE-09 Biochemistry
CHE-09 Biochemistry

... In an actively working muscle there is a lot of glycolytic activity. Explain why? What is the function of the oxygen in electron transport chain? How does the product of glycolysis enter the citric acid cycle? Does this reaction ...
No Slide Title
No Slide Title

... Nutrients are those parts of food that provide sources of energy, molecular building blocks, or ions and small molecules needed to support biochemical functions. •Amino acids •Fats •Sugars •Nucleic Acid Components •Minerals •Vitamins ...
Aerobic Respiration: steps Coenzyme A
Aerobic Respiration: steps Coenzyme A

... The ETC is a series of linked redox reactions, with multiple energy drops (some captured to make ATP), ending in oxygen being reduced to water ...
The Chemical Building Blocks of Life
The Chemical Building Blocks of Life

... Cells assemble 20 kinds of amino acids into proteins by forming peptide bonds Proteins have as many as four levels of structure Primary structure is the fundamental determinant of protein form and function Twists and other arrangements of the amino acid chain form the secondary structure of a protei ...
Document
Document

... fatty acids that reside in the mitochondria. During beta-oxidation, carbon is cleaved from the long carbon chains of fatty acids in two-carbon units. These two carbon molecules form acetyl-CoA. The newly created acetyl-CoA from pyruvate or beta-oxidation of fats can be oxidised to carbon dioxide (CO ...
U4L21 fuel oxidation - The University of Sydney
U4L21 fuel oxidation - The University of Sydney

... • FA is carried in blood on albumin – Several binding sites for FA ...
Opening Activity
Opening Activity

EPSP synthase
EPSP synthase

... Lecture13 Herbicide resistant plants ...
Cellular respiration and photosynthesis form a critical
Cellular respiration and photosynthesis form a critical

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What happens to proteins key 14

... With the help of gastric juices and enzymes in your stomach and small intestine, proteins are broken down into amino acids and absorbed into your blood to be used by your cells. A limited supply of amino acids exist in pools in your body, which act as reservoir for the synthesis of protein as needed ...
Cell Processes
Cell Processes

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BIO 101 Worksheet Metabolism and Cellular Respiration
BIO 101 Worksheet Metabolism and Cellular Respiration

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10/28/11 Test Review
10/28/11 Test Review

... i. Bonds are easier to break, energy is released 1. Hydrolysis of ATP is used by the cell to provide the energy needed to drive the chemical reactions that enable an organism to function Chapter 3: Section 2- Molecules of Life 1. Carbohydrates- organic compounds composed of carbon, hydrogen, and oxy ...
Learning Objectives
Learning Objectives

... Know how pyruvate dehydrogenase complex works (cofactors involved, mechanism, regulation) Know net reaction Know where ATP, CO2, FADH2 and NADH are made Know ultimate # ATP formed Stereospecificity of aconitase, fumarase ...
Student Questions and Answers October 22, 2002
Student Questions and Answers October 22, 2002

... respective enzymes, which will either recognise GDP/GTP or ADP at their nucleotide binding sites. The above question reflects a typical (and unfortunately ongoing) weakness of textbooks, which give a completely misleading information based on knowledge of the sixties! Actually most organisms (bacter ...
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... B2.5.2 Enzymes Relate the shape of an enzyme to its function Describe how high temperatures affect enzymes Describe how enzymes work at different pH values Describe examples of enzymes that work outside of body cells, such as digestive enzymes, including details of where they are produced, where the ...
Ch. 9 Cellular Respiration
Ch. 9 Cellular Respiration

... approximately 277.4 kcal of energy. If all of this energy is released at one time, then most of it would be lost as heat. Burning the energy all at once would be akin to igniting your gas tank in order to run your car, rather than burning small amounts of gasoline slowly in the engine. If the energy ...
Fibers, Proteins and Membranes
Fibers, Proteins and Membranes

... Proteins are made up of one or more polypeptide chains Proteins fold due to the interactions in the protein. The hydrophobic side chain e.g. tend to cluster on the inside while the hydrophilic chains are on the outside. The way a protein folds is a direct consequence of the sequence of its amino aci ...
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...  Matter can not be created or destroyed  It just changes form….  Water cycle…changes state  Biogeochemical cycles….changes into different compounds through different types of reactions ...
Keystone prac#ce set #1
Keystone prac#ce set #1

... releases  O2  in  the  process)   •  Respira-on  is  the  process  whereby  organisms  break   down  glucose  to  provide  energy  to  all  life  processes    Breaks  down  glucose  (with  O2),  transfers  energy  to  a   small  energy ...
Chapter 1 Homework - due Tuesday, Sept
Chapter 1 Homework - due Tuesday, Sept

... 3. Why is each of the following essential to chemiosmotic ATP synthesis? a) electron transport chain - these protein complexes pump protons into the intermembrane space while passing electrons between them b) proton gradient - so that hydrogen ions will diffuse through the ATP synthase channels down ...
Chapter 8 Microbial Metabolism
Chapter 8 Microbial Metabolism

... Cell Respiration: Electron Transport System and the Proton Motive Force As glucose was oxidized you noticed that there was a fair amount of reducing power formed (NADH and FADH2). As NAD+ and FAD are reduced they carry the electrons to the cell membrane which is the site of the electron transport sy ...
reactions --- electrons can`t flow in a vacuum, oxidation reactions
reactions --- electrons can`t flow in a vacuum, oxidation reactions

... Chapter 8 Metabolism Essential Concepts --- chemical energy is necessary to life in that it allows living organisms to drive endergonic (energy requiring) reactions using energy captured from exergonic (energy releasing) reactions --- electrons can’t flow in a vacuum, oxidation reactions must always ...
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Metabolism



Metabolism (from Greek: μεταβολή metabolē, ""change"") is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism.Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter by way of cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. Usually, breaking down releases energy and building up consumes energy.The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy. Enzymes act as catalysts that allow the reactions to proceed more rapidly. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or to signals from other cells.The metabolic system of a particular organism determines which substances it will find nutritious and which poisonous. For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism, the metabolic rate, influences how much food an organism will require, and also affects how it is able to obtain that food.A striking feature of metabolism is the similarity of the basic metabolic pathways and components between even vastly different species. For example, the set of carboxylic acids that are best known as the intermediates in the citric acid cycle are present in all known organisms, being found in species as diverse as the unicellular bacterium Escherichia coli and huge multicellular organisms like elephants. These striking similarities in metabolic pathways are likely due to their early appearance in evolutionary history, and their retention because of their efficacy.
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