The major role played by accessory pigments during photosynthesis is to?

Assessment: WAEC SSCE - Biology - 2012 (Objective) Subject: Biology

Question 1 Report

The major role played by accessory pigments during photosynthesis is to?

Answer Details
Accessory pigments play a major role in photosynthesis by trapping light energy that chlorophyll cannot absorb. Chlorophyll is the primary pigment that absorbs light energy, but it can only absorb certain wavelengths of light. Accessory pigments such as carotenoids and phycobilins are able to absorb additional wavelengths of light that chlorophyll cannot, and transfer the energy to chlorophyll. This increases the efficiency of photosynthesis by allowing more light energy to be absorbed and converted into chemical energy. Therefore, the correct option is "trap light energy that chlorophyll cannot absorb".

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