Plastids · Botany

Which molecule is the primary photosynthetic pigment found in the reaction centers of all green plant chloroplasts?

  1. Chlorophyll b
  2. Chlorophyll a
  3. Xanthophyll
  4. Beta-carotene
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Correct answer: Chlorophyll a

Chlorophyll a is the essential pigment for oxygenic photosynthesis. While other pigments act as 'antennae' to collect light, only chlorophyll a can donate electrons to the electron transport chain.

Difficulty: Medium Question 8 of 20

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