Question

Leaves with carotenoid pigment turn _________ during the fall.

Answer 1

The correct answer is option (b). yellow and orange.

The carotene or tetraterpenoids is a class of pigment produced by many organism including plants and the fungi. This pigment gives the yellow and the orange color to the leaves.

Generally, the leaves are green colored, due to the presence of chlorophyll, but during the fall, the amount of chlorophyll is decreased and the carotene gives a orange or yellow color to the leaves.

Answer 2

B.
Carotenoid is an orange pigment. Think: CAROTenoid, carrots (that isn't to say it's only found in carrots)

Hope this helps!