DENDROLOGY

Detailed explanation-1: -Because they interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs–organisms which make their own food using photosynthesis. In plants, algae, and cyanobacteria, pigments are the means by which the energy of sunlight is captured for photosynthesis.

Detailed explanation-2: -Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis.

Detailed explanation-3: -Pigments within the light-harvesting complexes absorb light and pass energy to a special pair of chlorophyll a molecules in the reaction center. The absorbed energy cause an electron from the chlorophyll a to be passed to a primary electron acceptor.

Detailed explanation-4: -Photosynthetic pigments are the most important coloured components of the chloroplast lamellae. These pigments are molecules that strongly absorb visible light. They interact with sunlight to alter the wavelengths that are either reflected or transmitted by the plant tissue.