Multiple Choice
What is the primary function of chloroplasts in plant and algal cells?
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12. Photosynthesis
Chloroplast
Multiple Choice
In chloroplasts, what is the primary light-absorbing pigment responsible for capturing energy for photosynthesis?
A
Chlorophyll b
B
Carotene
C
Chlorophyll a
D
Phycoerythrin
Verified step by step guidance1
Understand that photosynthesis in chloroplasts begins with the absorption of light energy by pigments.
Identify the main pigments involved in photosynthesis: chlorophyll a, chlorophyll b, carotene, and phycoerythrin.
Recognize that chlorophyll a is the primary pigment because it directly participates in the light reactions by capturing light energy and converting it into chemical energy.
Note that chlorophyll b and carotene act as accessory pigments, broadening the spectrum of light absorbed but transferring energy to chlorophyll a.
Conclude that chlorophyll a is the key pigment responsible for capturing energy for photosynthesis in chloroplasts.
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