Question : Algal blooms impart a distinct colour to water due to :(A) their pigments(B) excretion of coloured substances(C) formation of coloured chemicals in water facilitated by physiological degradation of algae.(D) absorption of light by algal cell wall.

Question : Algal blooms impart a distinct colour to water due to :(A)

1.	Question : Algal blooms impart a distinct colour to water due to :(A) their pigments(B) excretion of coloured substances(C) formation of coloured chemicals in water facilitated by physiological degradation of algae.(D) absorption of light by algal cell wall.
Answer» their pigments excretion of coloured substances formation of coloured chemicals in water facilitated by physiological degradation of algae. absorption of LIGHT by algal cell wall. Solution :Algal blooms impart a distinct colour to water DUE to their pigments. Type of Algae : (i) GREEN Algae (ii) Brown Algae (iii) RED Algae (iv) Blue-Green Algae Pigments: (i) Chlorophyll-a and b (ii) Chlorophyl 1. a and c, fucoxanthin (iii) Chlorophyll-a and d phycoerythrin (iv) Chlorophyll-a, carotenoids, PHYCOBILINS and phycoerythrene