AP BIOLOGY

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 constitute an important group of plant pigments. They are water soluble and belong to the family of flavonoids. More than 500 different anthocyanins have been identified. These pigments give plants, flowers, and fruits, their brilliant colors ranging from pink through scarlet, purple, and blue.

Detailed explanation-3: -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-4: -Anthocyanins, a proanthocyanidin type of flavonoids occur in various berries, flowers and fruits, vegetables and give them very attractive red, blue, purple, violet and orange colors. Their hydro-soluble nature allows their incorporation into aqueous food systems.

Detailed explanation-5: -Anthocyanins protect leaves from the stress of photoinhibitory light fluxes by absorbing the excess photons that would otherwise be intercepted by chlorophyll b.