Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

What is the source of the oxygen released during photosynthesis?
Options
A Water molecules split in the light reactions
Correct Answer
B Carbon dioxide
C Glucose
D Chlorophyll degradation
Correct Answer

Option A is the correct answer.

Detailed Explanation

The oxygen gas (O2) released as a byproduct comes from the splitting of water molecules (photolysis) during the light-dependent reactions in Photosystem II.

Hint

The process that splits water provides the electrons, protons, and oxygen.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 697 of 2556
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