Temperature tolerance of thermal blue-green algae is due to

Options

A. cell wall structure
B. cell organisation
C. mitochondrial structure
D. homopolar bonds in their proteins

Answer

A

Explanation

(a) Cyanobacteria provide a good example of the adaptablity of life to extremes of environment (high temperature of hot springs and low temperature of polar regions). It is due to their gelatinous sheath,that can withstand long periods of desiccation. The compactness of protein molecules and their bonds in the protoplasm alos help the cells to face the extremes.