15.8k views
5 votes
Which of the following is not a name for the cycle resulting in the conversion of a two-carbon acetyl to one ATP, two CO2, one FADH2, and three NADH molecules?

a) Krebs cycle
b) Citric acid cycle
c) Tricarboxylic acid cycle
d) Calvin cycle

User Gamo
by
7.7k points

1 Answer

5 votes

Final answer:

The name that is not related to the cycle which converts a two-carbon acetyl group to ATP, CO₂, FADH₂, and NADH is the 'Calvin cycle'. The Krebs cycle, citric acid cycle, and tricarboxylic acid cycle (TCA cycle) all refer to the same metabolic process within the cell's mitochondria.

Step-by-step explanation:

The cycle resulting in the conversion of a two-carbon acetyl group to one ATP, two CO₂, one FADH₂, and three NADH molecules is known by several names: the Krebs cycle, the citric acid cycle, and the tricarboxylic acid cycle (TCA cycle). Each of these names refers to the same biochemical sequence of reactions that occur inside the mitochondrial matrix of the cell.

The cycle involves the oxidation of an acetyl group and the production of high-energy electron carriers and one molecule of ATP (or GTP) through substrate-level phosphorylation. However, the answer to the question which of these is not a name for this cycle is the 'Calvin cycle', which is instead associated with the process of photosynthesis in plants, where carbon dioxide is converted into glucose.

The cycle resulting in the conversion of a two-carbon acetyl to one ATP, two CO2, one FADH2, and three NADH molecules is known by various names, including the Krebs cycle, the citric acid cycle, and the tricarboxylic acid cycle. All of these names refer to the same biochemical pathway. Therefore, the correct answer is d) Calvin cycle, which is not associated with the conversion of a two-carbon acetyl to the mentioned molecules.

User Twharmon
by
8.1k points