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22. Think of two different proteins: both are enzymes. a) What
22. Think of two different proteins: both are enzymes. a) What

... c) For each of the processes, tell which of the following compounds is produced (net): ADP, ATP, NAD, NADH Glycolysis=ATP, NADH Citrus acid cycle= NADH, ATP Oxidative phosphorylation= ATP, NAD d) At the end of a complete round of all 3 processes above, which of the following compounds has the cell n ...
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O - bio-brainstorm

...  Breaking down glucose ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 21. Define DPD. Explain how DPD is determined? 22. Describe an experiment to prove SPAC concept. 23. Write notes on the process of sugar translocation. 24. Explain acidification and deacidification in CAM plants. 25. Briefly explain the pigments of photosynthesis. 26. Describe the process of amino a ...
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Nucleic Acids - cpprashanths Chemistry

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File - Hope Christian College Parent and Student Portal
File - Hope Christian College Parent and Student Portal

... Energy – Cells need energy to do work and to catalyse reactions •Energy is also needed for growth, cell division, movement and to get rid of waste products. •Energy comes in different forms but cells use chemical energy. •Chemical energy is stored in bonds or the connections that join the atoms to m ...
Cell Biology
Cell Biology

... o If oxygen available, pyruvate fed into TCA cycle where it generates some ATP and more NADH(H+) and FADH2 are used to generate ATP by oxidative phosphorylation and chemiosmotic coupling via ETS. Oxidized to carbon dioxide. o If there is no oxygen available or cannot be used another way to regenerat ...
basic biochemistry - Personal Webspace for QMUL
basic biochemistry - Personal Webspace for QMUL

...  Two three-carbon compounds are formed from one molecule of fructose-1,6-bisphosphate  Energy yield in the conversion of glucose into pyruvate  The net reaction in the transformation of glucose into pyruvate is: Glucose + 2Pi + 2ADP + 2NAD ...
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... The glycolytic pathway (glycolysis) is where glucose, the smallest molecule that a carbohydrate can be broken into during digestion, gets oxidized and broken into two 3carbon molecules (pyruvates), which are then fed into the Kreb's Cycle. Glycolysis is the beginning of cellular respiration and take ...
electron transport chain
electron transport chain

... 1. substrate-level phosphorylation – transferring a phosphate directly from substrate molecules to ADP. 2. oxidative phosphorylation – use of ATP synthase and energy derived from a proton (H+) gradient to make ATP, occurs only in O2 presence. The complete oxidation of glucose proceeds in stages: 1. ...
1 - SchoolNotes
1 - SchoolNotes

... 84. The major enzyme that catalyzes the reduction of carbon dioxide is called _________________ 85. The first reaction in the citric acid cydle is binding _______________ 86. Acetyl-CoA is produced from __________________ 87. What process produces both NADH and FADH2? 88. Cellular respiration yields ...
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Who Wants To Be A Biologist?

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VI. Reaction Coupling and ATP

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Micro Lab Unit 1 Flashcards
Micro Lab Unit 1 Flashcards

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Glycolysis - medscistudents
Glycolysis - medscistudents

... The kinase reaction is bypassed in the erythrocytes No energy is trapped from 2, 3 BPG The BPG when combines with Hb, reduces the affinity of Hb towards oxygen. In the presence of 2, 3 BPG oxyhemoglobin unload oxygen more easily in tissues  Therefore the 2, 3 BPG increases in hypoxic condition ...
electron transport chain.
electron transport chain.

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Cellular Respiration
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... b- The formation of acetyl-co-A: The conversion of all these substances (hexoses, pentoses, F.A., A.A.) into 2 carbon compound which is Acetyl-CO-A which is common among all these nutrients. c. Oxidation of the Acetyl-CO-A into Co2 + H2O. the energy is produced as (ATP) in krebs TcA cycle. * These c ...
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metabolism in muscle and nerves

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Lh6Ch18AAOxid
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... Things to Know and Do Before Class 1. Amino acids from protein are an important energy source in carnivorous animals and during starvation. 2. The first step of AA catabolism is transfer of the NH3 via PLP-dependent aminotransferase usually to ketoglutarate to yield L-glutamate. 3. In most mammal ...
File - Mrs. LeCompte
File - Mrs. LeCompte

...  Occurs along the inner membrane of the mitochondria  Accepts energized electrons (e-s) from reduced coenzymes (NADH and FADH2)  Couples the exergonic slide of e-s to ATP synthesis or… OXIDATIVE PHOSPHORYLATION = ATP production that is coupled to the exergonic transfer of e-s from food to oxygen ...
Photosynthesis and Cellular Respiration
Photosynthesis and Cellular Respiration

... of cellular respiration, glycolysis, takes place in the cell cytoplasm. The two remaining pathways—the Krebs Cycle and electron transport—take place inside the mitochondria of the cell. ...
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Citric acid cycle



The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.
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