In chemiosmosis, the proton (H+) moves from _.
Correct answer: C. Lumen to Stroma
- A. Stroma to Lumen
- B. Cytoplasm to Stroma
- C. Lumen to Stroma
- D. Stroma to cytoplasm
Explanation
Chemiosmosis is the process whereby protons move down their electrochemical gradient, i.e., from a region of higher concentration to a region of lower concentration. During this process, they move through ATP synthase, and their movement results in the coupling of ADP and inorganic phosphate to form ATP. In chloroplasts, the concentration of protons is greater in the thylakoid lumen relative to the stroma; hence, protons move across the semipermeable membrane from the lumen into the stroma.
Last updated
Related questions
3-Phosphoglycerate in the presence of ATP and reduced NADP (from the light-independent stage) is reduced to:
3CO₂ + 6NADPH + 9ATP ⎯→ (CH₂O) 3 + 6 NADP + 9 ADP + 9 Pi + 3 H₂O. It is a summary equation of:
A 25 years old female with chronic fatigue was diagnosed with iron deficiency anemia and low blood count. What is the cause of her fatigue?
A aldo sugar that is intermediate between respiration and photosynthesis:
A biochemical process which occurs within a cell to breakdown complex compounds to produce energy is called: