CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ATP
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acetyl-CoA
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Carbon dioxide
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all
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Detailed explanation-1: -The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. The cycle harnesses the available chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH).
Detailed explanation-2: -During the first step of Krebs cycle, oxalo acetic acid reacts with acetyl CoA to form citric acid. As Krebs cycle is a cyclic pathway, the initial reactant oxalo acetic acid also acts as final product of the cycle.
Detailed explanation-3: -Answer and Explanation: Acetyl CoA is made from the pyruvate molecules produced in glycolysis. Acetyl CoA can also come from dietary fats and proteins. Acetyl CoA then begins the Krebs cycle (also known as the TCA cycle or the citric acid cycle).
Detailed explanation-4: -The final product of the Krebs cycle is oxaloacetic acid. It is a cycle because oxaloacetic acid (oxaloacetate) is the exact molecule needed to accept an acetyl-CoA molecule and start another turn of the cycle.
Detailed explanation-5: -Total