Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 15, Problem 10RQ
Summary Introduction
To review:
Definitions of the followingbiological terminologies:
(a) Oligonucleotide
(b) Nuclease
(c) Phosphodiesterase
(d) Nucleosidase
(e) Nucleotidase
Introduction:
The pyrimidine and purine nucleotides, in most living organism, sonstantly degrade and/or are recycled. Several enzymes, including nucleases and phosphodiesterases, play their significant roles in the digestion of
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A posttranslational modification that directs a polypeptide toa specific site is called a _____________________modification.
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Chapter 15 Solutions
Biochemistry: The Molecular Basis of Life
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- When a purine or pyrimidine is linked through a b-Nglycosidic link to C-1 of a pentose, the molecule is calleda _________________________.arrow_forwardQuestion 9 The nucleoside monophosphates are seen in metabolic pathways because their phosphoric anhydride bonds can be hydrolyzed off for energy. A) True B) Falsearrow_forwardPKU is an abbreviation for what disorder? What are the symptoms of PKU? How can PKU be treated for a nearly normal life?arrow_forward
- Question 1. a) Explain how 5 specific fatty acids ultimately generate specific classes of prostaglandins and leukotrienes that are involved in blood pressure, platelet aggregation and inflammation.b) Indicate and explain the specific effects of each of these classes of prostaglandins and leukotrienes on blood pressure, platelet aggregation and inflammation.c) Identify which foods, functional foods and nutraceuticals provide one or more of these 5 fatty acids.arrow_forwardQuestion 18 There is energy requirement for every amino acid added in a growing polypeptide chain. A) True B) Falsearrow_forwardWhat is the chemical nature of the enzyme primase?arrow_forward
- Orotic aciduria is an autosomal recessive disease caused by a deficiency of the enzyme UMP synthase (a bifunctional protein composed of orotate pyrophosphoribosyl transferase and OMP decarboxylase activities). What symptom accounts for the disease’s name? Suggest a possible treatment.arrow_forwardQuestion 13 Classify the following polysaccharides Chitin A. Heteroploysaccharide Cellulose B. Homopolysaccharide Peptidoglycan v Glycogen Glycosaminoglycanarrow_forwardQuestion 25 Calculate the net charges of the following peptides at pH 7.4. Indicate which amino acids bear chuarged side chans a) NH2-Asp-Leu-Phe-Ala-Lys-Pro-Glu-Gly-COOH b) NH2-GIn-Glu-Lys-Tyr-Trp-Arg-Ala-Leu-COOH DELLarrow_forward
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