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The Krebs Cycle

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by

Gianni Farese

on 21 November 2011

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Transcript of The Krebs Cycle

The Krebs Cycle Vocab Contributing Molecules High energy fuel molecule for The Krebs Cycle completes the breakdown of glucose by decomposing a derivative of pyruvic acid to Carbon Dioxide The Krebs Cycle takes place within the mitochondria the Krebs Cycle Acetyl Coen - Reactants Nad+ is the reactant of the product NADH + H+ And Products A 11 1 1 1.) In the Krebs Cycle, ADP+P is the reactant of the product ATP Redox Reactions harvest energy by stripping hydrogen atoms from organic acid intermediates. They produce energy-laden NADH molecules Energy is also gathered by susbstrate-level phosphorlyation from ADP in order to make ATP - zyme As in every chemical reaction or cycle, their are molecules that are included in the process. FAD ADP The Reactant of the Product FADH2 is FAD NAD+ Citrc
Acid These molecules
include: The hydrogen electron carrier FAD is respectively reduced concurrently while completing the cycle by regenerating oxaloacetic acid Oxaloaetic
Acid Alpha-
ketoglutaric
acid Malic Acid Succinic Acid At the very start of the cycle, two-carbon acetyl fragment are combined with oxaloacetic acid which produces a si- molecule citric acid that contains most of the fuel energy of the acetyl. FAD is a hydrogen carrier that is reduced to FADH . 2 Energy is
harvested by substrate
level phosphorylation
of ADP which Produces ATP. NAD+ is a hydrogen carrier which is reduced to NADH. At the end
of the third
step of the
Kreb's Cycle,
Succinic acid
appears after
ATP is made
from
substrate-level
phosphorylation
of ADP. A complete turn of the Krebs cycle is finished
after the conversion of a molecule of molaic acid
into a molecule of oxaloacetic acid. Alpha-ketoglutaric acid is the result of stripping hydrogen from organic acid intermediates, which happens because a succesful redox reaction harvests energy from the acetyl group. Before a turn of the Kreb's cycle is complete with oxaloacetic acid being made, malic acid is then converted to it.
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