Before entering the tricarboxylic acid cycle, the pyruvate produced by the glycolytic pathway is first converted to:
Correct answer: A. Acetyl-coenzyme A.
- A. Acetyl-coenzyme A.
- B. Citrate
- C. Coenzyme A
- D. Ethanol
Explanation
Acetyl-Coenzyme A (acetyl-CoA) is a crucial molecule in cellular metabolism, serving as a key intermediate in various biochemical pathways. It plays a central role in the catabolism (breakdown) of nutrients and serves as a precursor for the synthesis of important molecules.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Bioenergetics questions
Oxygen is used in which step of aerobic respiration:
Out of_molecules of G3P only one leaves the calvin cycle.
Which group is common in cyclic and non-cyclic phosphorylation?
How many moles of carbon dioxide are produced by the complete oxidation of 1 mole of pyruvate?
Both glucose and appropriate enzymes are necessary for the process of glycolysis to begin. Which additional compound must also be present?
Which of the following wavelength is least effective in photosynthesis?