Multiple Choice
Which of the following reactants is reduced during the process of photosynthesis?
a) Oxygen gas.
b) Photons of light.
c) Carbon Dioxide.
d) Water.
13. Photosynthesis
Introduction to Photosynthesis
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Plantlike photosynthesis that releases oxygen (O_2) occurs in _____.
A
archaea
B
purple sulfur bacteria
C
cyanobacteria
D
green non-sulfur bacteria
Verified step by step guidance1
Understand the question is asking which group performs plantlike photosynthesis that releases oxygen (O_2).
Recall that plantlike photosynthesis involves using light energy to convert carbon dioxide and water into glucose and oxygen, a process known as oxygenic photosynthesis.
Identify that oxygenic photosynthesis is characteristic of organisms that have photosystem I and II, which produce oxygen as a byproduct.
Recognize that cyanobacteria are the only prokaryotes capable of oxygenic photosynthesis, similar to plants, releasing O_2.
Eliminate other options: archaea generally do not perform photosynthesis; purple sulfur bacteria and green non-sulfur bacteria perform anoxygenic photosynthesis, which does not release oxygen.
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