BIOCHEMISTRY-ACHIEVE (1 TERM)
9th Edition
ISBN: 9781319402853
Author: BERG
Publisher: MAC HIGHER
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Chapter 23, Problem 31P
Interpretation Introduction
Interpretation:
The reason for the use of aspartame (an artificial sweetener) should be avoided by phenylketonurics should be determined.
Concept introduction:
The urea cycle is a series of biochemical reactions which involve the formation of urea (NH2)2CO from the ammonia (NH3). It is also known as the ornithine cycle. It helps in the excretion of toxic ammonia by converting into urea. This cycle takes place in ureotelic organisms.
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Be sure to answer all parts.
Give the amino acid sequence of an octapeptide that contains the amino acids Thr, Phe, Ile (2 equiv),
Asp, Cys, Val, Leu, and forms the following fragments when partially hydrolyzed with HCl:
Thr-Ile-Phe, Phe-Ile-Asp-Val, and Asp-Val-Cys-Leu.
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. Amylose
NH3
gala.
S Co A
C
H₂
R-C
S
CH₂
HN ĐÌNH
ΝΗ
CH₂
CH₂
NH
3. Compare and contrast how
thiolase and chymotrypsin
creates and stabilizes its
intermediates.
Chapter 23 Solutions
BIOCHEMISTRY-ACHIEVE (1 TERM)
Ch. 23 - Prob. 1PCh. 23 - Prob. 2PCh. 23 - Prob. 3PCh. 23 - Prob. 4PCh. 23 - Prob. 5PCh. 23 - Prob. 6PCh. 23 - Prob. 7PCh. 23 - Prob. 8PCh. 23 - Prob. 9PCh. 23 - Prob. 10P
Ch. 23 - Prob. 11PCh. 23 - Prob. 12PCh. 23 - Prob. 13PCh. 23 - Prob. 14PCh. 23 - Prob. 15PCh. 23 - Prob. 16PCh. 23 - Prob. 17PCh. 23 - Prob. 18PCh. 23 - Prob. 19PCh. 23 - Prob. 20PCh. 23 - Prob. 21PCh. 23 - Prob. 22PCh. 23 - Prob. 23PCh. 23 - Prob. 24PCh. 23 - Prob. 25PCh. 23 - Prob. 26PCh. 23 - Prob. 27PCh. 23 - Prob. 28PCh. 23 - Prob. 29PCh. 23 - Prob. 30PCh. 23 - Prob. 31PCh. 23 - Prob. 32PCh. 23 - Prob. 33PCh. 23 - Prob. 34PCh. 23 - Prob. 35PCh. 23 - Prob. 36PCh. 23 - Prob. 37PCh. 23 - Prob. 38PCh. 23 - Prob. 39PCh. 23 - Prob. 40PCh. 23 - Prob. 41PCh. 23 - Prob. 42PCh. 23 - Prob. 43PCh. 23 - Prob. 44PCh. 23 - Prob. 45PCh. 23 - Prob. 46PCh. 23 - Prob. 47PCh. 23 - Prob. 48PCh. 23 - Prob. 49P
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- Long 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_forwardTrue or False. Write the word “reducing” if the statement is correct, otherwise write “non-reducing”. 9. Ribulose yields 5-hydroxymethylfurfural upon treatment with strong acid.arrow_forwardLong 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. 5arrow_forward
- - Keto counterparts. Name the a-ketoacida-ketoacid that is formed by the transamination of each of the following amino acids: Co, a. Alanine b. Leucine c. Aspartate d. Phenylalanine e. Glutamate f. Tyrosinearrow_forwardNOTE: PLEASE SEND. CLEARER IMAGE PLEASE THANK YOU SOMUCH 2. Structural representation of tetrapeptide Phe-Met-Tyr-Asnarrow_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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