NUTRITION
LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Short unsaturated hydrocarbon tails have
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High permeability and fluidity
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Low permeability and fluidity.
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High permeability and low fluidity.
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Low Permeability and high fluidity.
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Explanation:
Detailed explanation-1: -The investigation showed that phospholipids with both saturated and unsaturated fatty acids strike a balance between impermeable and flexible membranes. More unsaturated fatty acids make more flexible membranes but they are too permeable to be used in cells.
Detailed explanation-2: -A shorter chain length reduces the tendency of the hydrocarbon tails to interact with one another, and cis-double bonds produce kinks in the hydrocarbon chains that make them more difficult to pack together, so that the membrane remains fluid at lower temperatures (Figure 10-9).
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