If the fatty acid is esterified with an alcohol of high molecular weight instead of glycerol, the resulting compound is(A) Lipositol (B) Plasmalogen(C) Wax (D) Cephalin

The esterification of fatty acids with alcohols is a common biochemical process that leads to the…

Answered: If the fatty acid is esterified with an…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Which of these fatty acids has the higher melting point? Explain why.(a) Linolenic acid (b) Stearic acid
Which of these fatty acids has the lower melting point? Explain why.(a) Linoleic acid (b) Stearic acid
Eicosanoids and endocannabinoids, which are hormone-like substances, are made from which fatty acid? ? a) kinetic acid b) oleic acid c) linolenic acid d) arachidonic acid Sphingomyelin differs from phosphatidyl choline in that: a) kinetic acid is absent in sphingomyelin b) sphingosine replaces glycerol in sphingomyelin c) sphingomyelin contains 2 choline molecules Which of these lipids contains no fatty acids? a) cerebrosides b) lecithin c) cholesterol d) plant oils Which of these is an ABC transporter? a) Na/K pump b) MDR protein c) Na/Ca antiporter d) Na/glucose symporter In an ion channel, the part of the channel protein which specifically binds to the ion is called: a) a voltage-gated channel b) a ligand-gated channel c) an antiporter d) a selectivity filter Symporters and antiporters may transport one chemical species against its concentration gradient. Energy for this is obtained from: a) ATP b) NADH via oxidative phosphorylation c)…
Given these molecular components—glycerol, fatty acid, phosphate, longchain alcohol, and carbohydrate—answer the following:(a) Which two are present in both waxes and sphingomyelin?(b) Which two are present in both fats and phosphatidylcholine?(c) Which are present in a ganglioside but not in a fat?
Given these molecular components-glycerol, fatty acid, phosphate, long- chain alcohol, and carbohydrate-answer the following: (a) Which two are present in both waxes and sphingomyelin? (b) Which two are present in both fats and phosphatidylcholine? (c) Which are present in a ganglioside but not in a fat?
Consider the following fatty acids: (i) 16:0; (ii) 20:0 and (iii) 20:4 A5,8,11,14. Rank them according to their liquidity at room temperature starting from the lowest to highest. O (ii) , (ii) , (1) O (ii) , (i) , (ii) O (1), (ii), (i) O (ii) , (1), (ii)
....
A triglyceride consists of (a) glycerol plus three fatty acids, (b) a sugar-phosphate backbone to which two amino groups are attached, (c) two to several hexoses, (d) amino acids that have been thoroughly saturated with hydrogen.
(a) Cholesterol is a lipid yet does not form membranes like the membrane lipids and is not used to store energy like the storage lipids. Explain. b) Glycerophospholipids and sphingolipids form membranes but triacylglycerols do not. Why? (c) Triacylglycerols are used for long term energy storage but glycogen and starch are used for short term energy storage. Explain
An unsaturated fatty acid produces more energy than the analogous saturated fatty acid. A) True B) False
Rank the melting points of the following fatty acids from highest to lowest: (1) cis-oleic(18:1) (original cis configuration) (2) trans-oleic (18:1) (transformed to trans configuration) (3) linoleic (18:2) (4) stearic (18:0) (5) palmitic (16:0)
The lipid(s) used as the basis of vitamin D, sex hormones, and bile salts is/are (a) triglycerides, (b) cholesterol, (c) phospholipids, (d) prostaglandin

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If the fatty acid is esterified with an alcohol of high molecular weight instead of glycerol, the resulting compound is (A) Lipositol (B) Plasmalogen (C) Wax (D) Cephalin