Glycolysis is inhibited by inhibition of phosphofructokinase through feedback mechanism by accumulation of _ in mitochondrion.
Correct answer: A. Citrate
- A. Citrate
- B. Oxaloacetate
- C. Succinate
- D. Adenosine triphosphate
Explanation
Citrate is a key molecule in cellular metabolism, playing a central role in both glycolysis and the citric acid cycle (also known as the Krebs cycle or tricarboxylic acid cycle).In the citric acid cycle, citrate is formed when acetyl-CoA combines with oxaloacetate.
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
Pumping of protons (H+) across the inner membrane of mitochondrion folded into cristae, between matrix of mitochondrion and mitochondrion's intermembrane space occur for chemiosmosis of:
NADH + H+ + 3ADP + 3Pi + ½ O2 ⎯⎯→ 3NAD+ + H2O + 3ATP. The equation has summarized:
In respiratory electron transport chain, the third ATP is produced by the oxidation of:
The condition in which reduced metabolic products comprising the "dept" accumulate due to inability of oxidative metabolism to function rapidly enough. The "debt" is payed off when the metabolism that produces reduced products slows. This is called:
The hydrogen ions move down their gradient from thylakoid space to outside through special complexes found in thylakoid membrane called:
In which of the following reactions of glycolysis, oxidation takes place?