EBK FUNDAMENTALS OF GENERAL, ORGANIC, A
8th Edition
ISBN: 8220102895805
Author: Peterson
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 20.71AP
What is the physiological purpose of starch in a seed or other plant tissue? What is the physiological purpose of glycogen in a mammal?
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Glycogen is the major animal storage polysaccharide, and is a polymer of glucose.
a) List ALL the biochemical steps involved in storing GLUCOSE as glycogen
b) Give NAME/S of the ENZYMES involved in EACH listed step
c) What PULLS the reaction forward?
d) Give the NAME of the tissue where these steps occur. (HINT: remember glycogen is branched chain).
When the activated form of alcohol is used to synthesize glycerophospholipids, CDP-alcohol reacts with diacylglycerol to form glycerophospholipids. In this metabolic pathway, diacylglycerol is most likely produced by:
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b) Phosphatidate phosphorylase
c) Diacylglycerol lipase
d) All of the above
e) None of the above
(a) What is protein turnover? Give 1-2 examples.
(b) What are the main differences between glucogenic and ketogenic amino acids?
Chapter 20 Solutions
EBK FUNDAMENTALS OF GENERAL, ORGANIC, A
Ch. 20.1 - Classify the following monosaccharides as an...Ch. 20.1 - Prob. 20.2PCh. 20.2 - Prob. 20.3PCh. 20.2 - Prob. 20.4PCh. 20.2 - Prob. 20.6PCh. 20.3 - D-Talose, a constituent of certain antibiotics,...Ch. 20.3 - Prob. 20.8PCh. 20.3 - Draw the structure that completes the mutarotation...Ch. 20.4 - Prob. 20.10KCPCh. 20.4 - Prob. 20.11P
Ch. 20.4 - Prob. 20.12PCh. 20.4 - Prob. 20.13PCh. 20.4 - Prob. 20.1CIAPCh. 20.4 - Prob. 20.2CIAPCh. 20.4 - All cells in your body contain glycoproteins...Ch. 20.5 - Draw the structure of the and anomers that...Ch. 20.6 - Prob. 20.15PCh. 20.6 - Prob. 20.16PCh. 20.6 - Prob. 20.17KCPCh. 20.7 - Prob. 20.4CIAPCh. 20.7 - Prob. 20.5CIAPCh. 20.7 - Prob. 20.6CIAPCh. 20.7 - Prob. 20.7CIAPCh. 20.7 - Prob. 20.18PCh. 20.7 - Prob. 20.19PCh. 20.7 - Prob. 20.8CIAPCh. 20.7 - Prob. 20.9CIAPCh. 20.7 - Prob. 20.10CIAPCh. 20 - During the digestion of starch from potatoes, the...Ch. 20 - Prob. 20.21UKCCh. 20 - Consider the trisaccharide A, B, C shown in...Ch. 20 - Hydrolysis of both glycosidic bonds in the...Ch. 20 - Prob. 20.24UKCCh. 20 - Are one or more of the disaccharides maltose,...Ch. 20 - Prob. 20.26UKCCh. 20 - Prob. 20.27UKCCh. 20 - Prob. 20.28APCh. 20 - What is the family-name ending for a sugar?Ch. 20 - Prob. 20.30APCh. 20 - Classify the four carbohydrates (a)(d) by...Ch. 20 - Prob. 20.32APCh. 20 - How many chiral carbon atoms are there in each of...Ch. 20 - Prob. 20.34APCh. 20 - Prob. 20.35APCh. 20 - Name four important monosaccharides and tell where...Ch. 20 - Prob. 20.37APCh. 20 - Prob. 20.38APCh. 20 - What is the structural relationship between...Ch. 20 - Prob. 20.40APCh. 20 - In Section 15.6, you saw that aldehydes react with...Ch. 20 - Sucrose and D-glucose rotate plane-polarized light...Ch. 20 - Prob. 20.43APCh. 20 - Prob. 20.44APCh. 20 - Prob. 20.45APCh. 20 - What is mutarotation? Do all chiral molecules do...Ch. 20 - What are anomers, and how do the anomers of a...Ch. 20 - What is the structural difference between the ...Ch. 20 - D-Gulose, an aldohexose isomer of glucose, has the...Ch. 20 - Prob. 20.50APCh. 20 - In its open-chain form, D-altrose has the...Ch. 20 - Prob. 20.52APCh. 20 - Prob. 20.53APCh. 20 - Prob. 20.54APCh. 20 - Prob. 20.55APCh. 20 - What is the structural difference between a...Ch. 20 - What are glycosides, and how can they be formed?Ch. 20 - Prob. 20.58APCh. 20 - Prob. 20.59APCh. 20 - Give the names of three important disaccharides....Ch. 20 - Lactose and maltose are reducing disaccharides,...Ch. 20 - Amylose (a form of starch) and cellulose are both...Ch. 20 - Prob. 20.63APCh. 20 - Prob. 20.64APCh. 20 - Prob. 20.65APCh. 20 - Gentiobiose, a rare disaccharide found in saffron,...Ch. 20 - Prob. 20.67APCh. 20 - Prob. 20.68APCh. 20 - Prob. 20.69APCh. 20 - Amylopectin (a form of starch) and glycogen are...Ch. 20 - What is the physiological purpose of starch in a...Ch. 20 - Prob. 20.72APCh. 20 - Prob. 20.73APCh. 20 - Prob. 20.74CPCh. 20 - Prob. 20.75CPCh. 20 - Prob. 20.76CPCh. 20 - Prob. 20.77CPCh. 20 - Prob. 20.78CPCh. 20 - Write the open-chain structure of the only...Ch. 20 - Prob. 20.80CPCh. 20 - Prob. 20.81CPCh. 20 - When a person cannot digest galactose, its reduced...Ch. 20 - Describe the differences between mono-, di-, and...Ch. 20 - Prob. 20.84CPCh. 20 - Prob. 20.85CPCh. 20 - Many people who are lactose intolerant can eat...Ch. 20 - Prob. 20.87GPCh. 20 - Prob. 20.88GPCh. 20 - Prob. 20.89GP
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- Why are linoleate and linolenate considered essential fatty acids? What step in production of polyunsaturated fatty acids are mammals unable to perform?arrow_forwardEicosanoids 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)…arrow_forwarda) Describe the structure of a glycogen molecule. (you can explain without drawing) b) List the three enzymes involved in glycogen degradation and describe the type of reactions they catalyze c) Fill in the numbered blanks in the figure which is the list the source and fates of glucose-6- phosphate. Glycogen pentose phosphate pathway Glucose-6-phosphate Ribose-G-phosphate Glucose glycolysis 3 Amino acida |Lactate Citric acid cyclearrow_forward
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- Which of the following is not associated with Perilipin? A) when phosphorylated, it re-structures fat droplets for easy degradation of triacylglycerols B) is a fat droplet-associated protein C) is phosphorylated when glucagon and epinephrine levels are high D) when phosphorylated, it helps to degrade the coactivator of ATGL Next Page Page 4 of 125arrow_forwardHow do germinating seeds convert their triacylglycerol reserves to the glucose molecules required in the synthesis of complex carbohydrate such as cellulose?arrow_forwardWhen young rats are placed on a completely fat-free diet, they grow poorly, develop a scaly dermatitis, lose hair, and soon die. These symptoms can be prevented if linoleate or plant material is included in the diet. What makes linoleate an essential fatty acid? Animals lack the enzymes required to synthesize long-chain fatty acids with 14 or more carbons. Animals lack the enzymes required to synthesize odd-number fatty acids. Animals lack the enzymes required to synthesize polyunsaturated fatty acids. Animals lack the enzymes required to introduce double bonds into fatty acids beyond the A9 position.arrow_forward
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