CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the removal of a C atom from glucose
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the addition of a C atom to glucose
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the removal of one carbon atom and 2 oxygen atoms from a pyruvate
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the addition of one carbon atom and 2 oxygen atoms to a pyruvate
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Detailed explanation-1: -Answer and Explanation: There are two carbon dioxide molecules produced for every molecule of pyruvate in the Krebs cycle. They are produced during decarboxylation reactions.
Detailed explanation-2: -After the second turn through the Krebs cycle, the original glucose molecule has been broken down completely. All six of its carbon atoms have combined with oxygen to form carbon dioxide.
Detailed explanation-3: -The carbon dioxide produced from the Krebs cycle is treated as a waste product that is removed from the body through exhalation. This by-product can enter the leaves of plants to be used in photosynthesis.
Detailed explanation-4: -Krebs cycle produces the following: Two molecules of carbon dioxide are given off. One molecule of ATP is formed. Three molecules of NADH are produced.