Two pyranoses which are anomers Chapters 10 and 11 Lipids and glycoproteins 1. T

Question

Two pyranoses which are anomers Chapters 10 and 11 Lipids and glycoproteins 1. Triacylglycerols having unsaturated fatty acids usually have lower melting points than those having saturated fatty acids with the same number of carbons. This is because: a) unsaturated fatty acids are more lipophilic than saturated fatty acids b) saturated fatty acids and unsaturated fatty acids attract each other c) the cis-double bonds in the unsaturated fatty acids produce bends in the chain which makes it difficult for the molecules to pack together d) saturated fatty acids are attracted to water Which of these is not a component of phosphatidylcholine? A) glycerol b) fatty acids c) phosphocholine d) kinetic acid 2.

Explanation / Answer

Q. 1 answer is C as because double bonds cause the hydrocarbon chain to bend, which makes dificult to molecules pack together in a complex lattice.

Hence these have lower melting points.

Q. 2 answer D as it contains only glycerols, fatty acids and phosphocholines

not the kinetic acid

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