BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
9th Edition
ISBN: 9781319425746
Author: BERG
Publisher: MAC HIGHER
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Chapter 25, Problem 3P
Interpretation Introduction
Interpretation:
Monosaccharide required to synthesize
Concept introduction:
Purines and pyrimidines are the nucleotides, which are produced in the liver. They contain a molecule of sugar and phosphate. The location of nitrogen in both the nucleotides is different. Their pathways of synthesis are different, but they need a common phosphorylated 5-carbon monosaccharide.
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Long explanations are not needed. Direct answers would suffice.
a. Which of the following is NOT an example of structural polysaccharides?
I. amylose
II. cellulose
III. chitin
b. Which of the following is the epimer of glucose at C-2?
I. gulose
II. galactose
III. mannose
IV. fructose
V. talose
Long explanations are not needed. Direct answers would suffice.
a. Lactose, a disaccharide composed of galactose and glucose, is an example of ______.
I. sugar phosphate
II. reducing sugar
III. non-reducing sugar
b. The two most common amino sugars, B-D-glucosamine and B-D-galactosamine are formed from their respective carbohydrates by substitution of an amino group in place of the hydroxyl group on carbon _____.
I. 3
II. 5
III. 2
IV. 4
V. 5
cotton. Which aspect of the structure of cellulose accounts for its strength?
Cellulose is an abundant structural polysaccharide found in plant cell walls, wood, and
interchain hydrogen bonding between extended molecular chains
repeating unit of N-acetylglucosamine
a(1→4) linkages between glucose units
branches that occur every 12-30 residues
forms a helical conformation in water
Which of the following is not correct about chitin?
fundamental constituent of the exoskeletons of crustaceans, insects, and spiders
b)
chitin chains form extended ribbons that pack side-by side
a)
similar to cellulose but with repeating units of N-acetyl-D-glucosamine
c)
d)
found mainly in the liver in humans, making up as much as 10% of liver mass
stacked sheets of chitin strands are stabilized by intrastrand, interstrand, and
intersheet hydrogen bonds
Chapter 25 Solutions
BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
Ch. 25 - Prob. 1PCh. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Prob. 5PCh. 25 - Prob. 6PCh. 25 - Prob. 7PCh. 25 - Prob. 8PCh. 25 - Prob. 9PCh. 25 - Prob. 10P
Ch. 25 - Prob. 11PCh. 25 - Prob. 12PCh. 25 - Prob. 13PCh. 25 - Prob. 14PCh. 25 - Prob. 15PCh. 25 - Prob. 16PCh. 25 - Prob. 17PCh. 25 - Prob. 18PCh. 25 - Prob. 19PCh. 25 - Prob. 20PCh. 25 - Prob. 21PCh. 25 - Prob. 22PCh. 25 - Prob. 23PCh. 25 - Prob. 24PCh. 25 - Prob. 25PCh. 25 - Prob. 26PCh. 25 - Prob. 27PCh. 25 - Prob. 28PCh. 25 - Prob. 29PCh. 25 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - Prob. 32PCh. 25 - Prob. 33PCh. 25 - Prob. 34PCh. 25 - Prob. 35PCh. 25 - Prob. 36PCh. 25 - Prob. 37PCh. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - Prob. 43PCh. 25 - Prob. 44PCh. 25 - Prob. 45PCh. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Prob. 48PCh. 25 - Prob. 49PCh. 25 - Prob. 50PCh. 25 - Prob. 51P
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- Long explanations are not needed. Direct answers would suffice. ***kind of in a hurry so having the answer asap would greatly be appreciated, thank you :)) a. Maltose contains 2 glucose units linked α1,4 and is a reducing sugar. i. True ii. False b. Which of the following polysaccharides contains glucose linked via β-1,4 glycosidic bonds? i. Amylopectin ii. Glycogen iii. Cellulose iv. Amylosearrow_forwardLong explanations are not needed. Direct answers would suffice. ***kind of in a hurry so having the answer asap would greatly be appreciated, thank you :)) a. Which of the following is FALSE about sucrose? i. It is a non-reducing sugar. ii. It is the transport sugar in plants. iii. It is a disaccharide. iv. Its monosaccharide units are linked via glycosidic bond α1→β1. v. It is composed of glucose and fructose. b. How many carbon atoms are found in the smallest molecules that can be classified as carbohydrates? i. 5 ii. 2 iii. 1 iv. 4 v. 3arrow_forwardLong explanations are not needed. Direct answers may suffice. a. B-D-2-Deoxyribose is an aldopentose component of the nucleic acid structure with its -OH group at C-3 reduced to -H. I. True II. False b. Aldohexoses commonly exist in living systems in either the straight chain or ring (pyranose) forms. I. True II.Falsearrow_forward
- Long explanations are not needed. Direct answers would suffice. a. Carbohydrates can function in livings systems as any of the following, EXCEPT: i. storage of energy ii. structural and mechanical support iii. aid in cell surface recognition iv. storage of genetic information v. source of ATP when catabolized b. Which of the following structural representations best describes an open-chain monosaccharide, either an aldose or a ketose? i. Fischer projection ii chair conformation iii boat conformation iv. Haworth projectionarrow_forwardHemicellulose isa. a cross-linked glucose polymer.b. partially digested cellulose.c. a five-carbon sugar polymer.d. a complex of cellulose with lignin.arrow_forwardLong explanations are not needed. Direct answers would suffice. a. The penultimate carbon in an aldohexose is C-5 which is the last chiral carbon in the structure counting from the aldehydic carbon or C-1. I. True II. False b. Starch is a storage carbohydrate in plants while glycogen is a storage carbohydrate in animals. I. True II. Falsearrow_forward
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