Question

Growing E.coli cells, when shifted from ${37}^{\circ }C$ to ${20}^{\circ }C$, maintain their membrane fluidity by modifying the following parameters.

• A. Fatty acid chain length and sterol content
• B. Fatty acid chain length and unsaturation
• C. Fatty acid unsaturation and sterol content
• D. E.coli cannot maintain membrane fluidity

Answer 1

The correct option is C Fatty acid unsaturation and sterol content

Membrane fluidity is enhanced by the presence of unsaturated fatty acid and to some extent sterol, therefore while growing E.coli if the temperature is shifted from 37 degrees to 20 degree Celsius the membrane fluidity can be maintained by modifying faddy acid unsaturation and sterol content.

So, the correct answer is 'Fatty acid unsaturation and sterol content'.