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practice testMultiple Choice

Practice Test

Question 1 • Biology

Which term identifies a light-absorbing pigment?

Answer
A
ferredoxin
B
photosystem
C
chlorophyll
D
thylakoid

Explanation

Chlorophyll is the light-absorbing pigment in photosynthesis. It captures light energy, while ferredoxin is an electron carrier, a thylakoid is a membrane structure, and a photosystem is a protein-and-pigment complex.

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