Question

The green color of leaves is due to the presence of the pigment
(A)Chlorophyll
(B)Ribosomes
(C)Mitochondria
(D)Chloroplast

Answer 1

Hint: The green color of leaves is due to the presence of the pigment which has a molecular formula of $C_{55}{H}_{72}{O}_5{N}_{4}Mg$. This pigment was first isolated and named by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817.

Complete answer:
 The green color of leaves is due to the presence of the pigment Chlorophyll. Chlorophyll is important in photosynthesis, allowing plants to absorb energy from light.
Chlorophyll pigment absorbs light most strongly within the blue portion of the spectrum as well as the red portion.

Additional Information: Chlorophyll is a very important pigment for photosynthesis, which allows plants to absorb energy from light. The chlorophyll molecules are usually arranged in and even around photosystems that are embedded within the thylakoid membranes of the chloroplasts. In these complexes, chlorophyll serves three types of functions.
 The function of the chlorophyll (which is present up to many hundred molecules per photosystem) is to absorb light. These same centers execute their second function: the transfer of that light energy by resonance energy transfer to a selected chlorophyll pair within the reaction center of the photosystems. This pair has the effect of the ultimate function of chlorophylls, charge separation, resulting in biosynthesis.
So, the correct answer is ‘Chlorophyll’.

Note: There are four types of chlorophyll present. They are -
-chlorophyll-a, which is found in all higher plants, algae, and cyanobacteria;
-chlorophyll b, which is found in higher plants and green algae;
-chlorophyll c, which is found in diatoms, dinoflagellates, and brown algae; and
-chlorophyll d, which is found only in red algae.