AP BIOLOGY

PHOTOSYNTHESIS

PHOTOSYNTHETIC PIGMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the name of the red pigments found in leaves?
A
anthocyanins
B
carotenoids
C
chlorophyll
D
tannins
Explanation: 

Detailed explanation-1: -Anthocyanins are blue, red, or purple pigments found in plants, especially flowers, fruits, and tubers. In acidic condition, anthocyanin appears as red pigment while blue pigment anthocyanin exists in alkaline conditions.

Detailed explanation-2: -Anthocyanins. A third pigment, or class of pigments, that occur in leaves are the anthocyanins. Anthocyanins absorb blue, blue-green, and green light. Therefore, the light reflected by leaves containing anthocyanins appears red.

Detailed explanation-3: -Anthocyanins absorb light in the blue-green wavelengths, allowing the red wavelengths to be scattered by the plant tissues to make these organs visible to us as red.

Detailed explanation-4: -Out of given options, anthocyanin is a red colour plant pigment. It is present in cherries, red cabbage, raspberry, etc. Plant pigments are coloured substances produced by plants. These pigments help in photosynthesis, growth and development of the plant.

Detailed explanation-5: -Anthocyanins (from Ancient Greek (ánthos) ‘flower’, and / (kuáneos/kuanoûs) ‘dark blue’), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black.

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