The mechanism for ATP synthesis is_____________?
Correct answer: D. Chemiosmosis
- A. Chemosynthesis
- B. Photosynthesis
- C. Phosphorylation
- D. Chemiosmosis
Explanation
Chemiosmosis synthesizes ATP by using the flow of protons through ATP synthase down their electrochemical gradient, which drives phosphorylation of ADP. Photosynthesis and chemosynthesis are energy-producing pathways, not the specific mechanism of ATP formation. Students may choose phosphorylation because ATP is formed by adding phosphate, but phosphorylation describes the chemical step rather than the proton-driven mechanism.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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 Cellular Respiration questions
An active athlete has more stamina of running compared to an officer of same age with physically inactive lifestyle. Which of the following organelles has greatly increased in the muscle cells of athlete?
The most primitive respiratory process occurring in a living cell is:
Chemiosmosis involves
Biologist 'Grass' discovered the life cycle of plasmodium in_______?
Glycolysis process occur in?
Kind of cellular respiration which occurs in presence of oxygen is _________ ?