[Answer] Which of the following is a reasonable explanation for why unsaturated fatty acids help keep a membrane more fluid at lower temperatures?

Answer: The double bonds form kinks in the fatty acid tails preventing adjacent lipids from packing tightly.

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Which of the following is a reasonable explanation for why unsaturated fatty acids help keep a membrane more fluid at lower temperatures? Membrane fluidity is affected by fatty acids . More specifically whether the fatty acids are saturated or unsaturated has an effect on membrane fluidity. Saturated fatty acids have no double bonds in the hydrocarbon chain and the maximum amount of hydrogen. The absence of double bonds decreases fluidity making the membrane very strong and ... Unsaturated fatty acids have one or more C=C double bonds.The C=C double bonds can give either cis or trans isomers.. cis A cis configuration means that the two hydrogen atoms adjacent to the double bond stick out on the same side of the chain. The rigidity of the double bond freezes its conformation and in the case of the cis isomer causes the chain to bend and restricts the conformational ... Stearic acid is a saturated fatty acid (with only single bonds) found in animal fats and is the intended product in full hydrogenation. Oleic acid has a double bond (thus being " unsaturated ") with cis geometry about midway in the chain; it makes up 55–80% of olive oil.. Elaidic acid is its trans isomer; it may be present in partially hydrogenated vegetable oils and also occurs in the fat ... A saturated fat is a type of fat in which the fatty acid chains have all or predominantly single bonds.A fat is made of two kinds of smaller molecules: glycerol and fatty acids .Fats are made of long chains of carbon (C) atoms. Some carbon atoms are linked by single bonds (-C-C-) and others are linked by double bonds (-C=C-). Double bonds can react with...

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