Question

When grown at higher temperatures, bacteria and yeast maintain an optimal membrane fluidity by doing which of the following? Choose one: o producing membrane lipids with tails that are shorter and contain fewer double bonds o producing membrane lipids with tails that are longer and contain more double bonds o adding cholesterol to their membranes o producing membrane lipids with tails that are shorter and contain more double bonds o producing membrane lipids with tails that are longer and contain fewer double bonds

Answer 1

Answer

Choice e)  producing membrane lipids with tails that are longer and contain fewer double bonds.

Explanation:
Membrane fluidity is directly proportional to  temperature. ie; Membrane fluidity increases with increase in temperature. So the bacteria and yeast will add phospholipids which has longer tails and fewer double bonds. This results in lipids packing is always more tight to prevent their membranes from becoming too fluid.

All the other choices are wrong for the given statements

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