Photosynthesis In Higher Plants Question 60
Question: Plants give off oxygen because:
Options:
A) Oxygen results from the incorporation of carbon dioxide into sugars.
B) Plants do not respire since they photosynthesise.
C) Water is the initial proton donor, leaving oxygen as a photosynthetic by-product.
D) All of the above
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Water is split at photosystem-II to donate electrons to the reaction centre.
The resulting protons are moved across the membrane to establish the proton motive force and oxygen is given off as a by-product.
BETA
