Biology Pigments

What is the primary pigment responsible for photosynthesis in plants?

• carbon dioxide

• chlorophyll

• oxygen

• water

Which pigment gives plants their green color?

• chlorophyll

• melanin

• hemoglobin

• carotene

What is the function of chlorophyll in photosynthesis?

• Chlorophyll releases light energy for photosynthesis.

• Chlorophyll converts carbon dioxide into oxygen during photosynthesis.

• Chlorophyll provides nutrients for photosynthesis.

• Chlorophyll absorbs light energy for photosynthesis.

Name one type of carotenoid pigment.

• alpha-carotene

• lycopene

• zeaxanthin

• beta-carotene

What is the role of carotenoids in plants?

• Carotenoids absorb light energy for photosynthesis and protect the plant from excessive light damage.

• Carotenoids regulate the water balance in plants.

• Carotenoids provide structural support to plants.

• Carotenoids help plants in reproduction.

Which pigment absorbs light in the blue and red regions of the spectrum?

• Chlorophyll

• Melanin

• Carotene

• Hemoglobin

What is the main function of chlorophyll in plants?

• The main function of chlorophyll in plants is to produce oxygen.

• The main function of chlorophyll in plants is to capture light energy for photosynthesis.

• The main function of chlorophyll in plants is to provide structural support.

• The main function of chlorophyll in plants is to store water.

What is the role of carotenoids in protecting plants from excessive light?

• Carotenoids reflect excessive light away from plants.

• Carotenoids increase the production of chlorophyll in plants.

• Carotenoids absorb and dissipate excess energy as heat.

• Carotenoids convert excessive light into chemical energy.

Which pigment is responsible for the yellow, orange, and red colors in plants?

• carotenoids

• xanthophylls

• chlorophyll

• anthocyanins

What is the purpose of chlorophyll in capturing light energy for photosynthesis?

• To store light energy

• To convert light energy into heat

• To reflect light energy

• To absorb light energy