The Cell Membranes of Thermophiles and Hyperthermophilic Bacteria Typically Have

Question

The cell membranes of thermophiles and hyperthermophilic bacteria typically have
A) more saturated fatty acids.
B) more long chain fatty acids.
C) fewer unsaturated fatty acids.
D) All of these answer choices are true of thermophiles and hyperthermophilic bacteria.

Accepted Answer

Thermophiles and hyperthermophilic bacteria are organisms that thrive at high temperatures above 50 °C. Their cell membranes must be adapted to maintain their integrity and function in these extreme conditions. To do this, they typically have cell membranes with more saturated fatty acids, more long chain fatty acids, and fewer unsaturated fatty acids, all of which contribute to a more stable and rigid membrane that can resist heat-induced damage. Therefore, all of the answer choices A, B, and C are true of thermophiles and hyperthermophilic bacteria.