Question
Biology Question on biological classification
Many blue-green algae occur in thermal springs (hot water springs). The temperature tolerance of these algae has been attributed to
A
mitochondrial structure
B
homopolar bonds in their proteins
C
cell wall structure
D
modern cell organisation.
Answer
homopolar bonds in their proteins
Explanation
Solution
There are a sufficient number of thermophilic Cyanophyceae. They constitute the principle vegetation of hot springs. They are able to live in water whose temperature is as high as 85?C. Because of their gelatinous sheaths, they can withstand long periods of desiccation. The compactness of protein molecules and their bonds in the protoplasm also help the cells to face the extremes.