Question

which are accessory photosynthetic pigments? check all that apply.
check all that apply
carotene
chlorophyll a
hemoglobin
xanthophyll

Explanation:

• Carotene: It is an accessory pigment. It can absorb light in the blue - violet region and transfer the energy to chlorophyll a. It also protects the plant from excessive light damage.
• Chlorophyll a: It is the main photosynthetic pigment, not an accessory pigment. It is directly involved in the light - dependent reactions of photosynthesis by capturing light energy and initiating the electron transfer chain.
• Hemoglobin: It is a protein in red blood cells of animals (not a plant pigment) that is responsible for transporting oxygen. It has no role in photosynthesis.
• Xanthophyll: It is an accessory pigment. It can absorb light in the blue region and transfer the energy to chlorophyll a. It also functions as an antioxidant and can protect the plant from photo - oxidative stress.

Answer:

Carotene, Xanthophyll