Multiple Choice
Which pigment is responsible for night vision?
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9. Photosynthesis
Pigments of Photosynthesis
Multiple Choice
Which pigment is the primary molecule responsible for capturing light energy during photosynthesis?
A
Chlorophyll a
B
Chlorophyll b
C
Xanthophyll
D
Carotene
Verified step by step guidance1
Understand the process of photosynthesis: Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. Pigments play a crucial role in capturing light energy.
Learn about pigments involved in photosynthesis: Pigments are molecules that absorb specific wavelengths of light. The main pigments in photosynthesis include chlorophyll a, chlorophyll b, carotenoids (like carotene), and xanthophylls.
Identify the primary pigment: Chlorophyll a is the primary pigment responsible for capturing light energy during photosynthesis. It absorbs light most efficiently in the blue-violet and red wavelengths and is directly involved in the light-dependent reactions.
Understand the role of accessory pigments: Chlorophyll b, carotenoids, and xanthophylls are accessory pigments. They broaden the range of light absorption and transfer the captured energy to chlorophyll a for use in photosynthesis.
Conclude the answer: Based on the information, chlorophyll a is the primary molecule responsible for capturing light energy during photosynthesis.
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