Question

level 5
q4
what pigment molecule in plants absorb blue
and green light, making leaves appear yellow,
red and orange?
a. melanin
b. chlorophyll
c. carotenoid
d. anthocyanin

a. melanin
b. chlorophyll
c. carotenoid
d. anthrocyanin

Explanation:

• Option A: Melanin is a pigment in animals (like skin, hair) for protection, not in plants for light absorption. Eliminate A.
• Option B: Chlorophyll absorbs blue and red light, reflects green, making leaves green. Doesn't match the description. Eliminate B.
• Option C: Carotenoids absorb blue and green light, reflect yellow, red, orange. This matches the question's description.
• Option D: Anthocyanins are for red/purple colors in plants (like flowers, fruits), not for the yellow/orange leaf appearance from blue/green light absorption. Eliminate D.

Answer:

C. Carotenoid