Phosphorylation of ADP during glycolysis occurs via:
Correct answer: D. Substrate level phosphorylation
- A. Photophosphorylation
- B. Oxidative phosphorylation
- C. Chemiosmosis
- D. Substrate level phosphorylation
Explanation
During glycolysis, ATP is produced through substrate-level phosphorylation. This process involves the direct transfer of a phosphate group from a high-energy substrate molecule to ADP, forming ATP. This mechanism is distinct from oxidative phosphorylation, which occurs in mitochondria during the electron transport chain, and chemiosmosis, which is part of oxidative phosphorylation. Photophosphorylation is unrelated, as it occurs during photosynthesis in chloroplasts.
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
Biological oxidation involves the removal of hydrogen, linked with specific coenzymes, and is catalyzed by
Which of the following processes is used in the conversion of pyruvate to acetyl-CoA?
Starting from the end products of glycolysis, how many molecules of CO₂ are produced up to the formation of succinate in a single Krebs cycle?
Before entering the Krebs cycle, the pyruvate is decarboxylated into
Aldo sugar that is intermediate between respiration and photosynthesis:
G3P is converted into glucose phosphate in: