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 14, Problem 2RQ
Summary Introduction
To review:
Definition of the following biological terminologies:
(a) Nonessential amino acid
(b) Essential amino acid
(c) Branched-chain amino acid
(d) Nitrogen balance
(e) Transamination
Introduction:
Amino acids are nitrogenous compounds that are basic subunits of proteins. The amino acids are synthesized by living organisms including plants, animals, and many microorganisms. The capacity to synthesize amino acids required for protein synthesis usually differs from organism to organism.
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Chapter 14 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_forwardSugars that react with Tollens’ reagent are called____________________ sugars.arrow_forwardAmino acids that degrade yielding acetyl-CoA or acetoacetyl-CoA are referred to as _____________.arrow_forward
- Four important properties of enzymes are high catalytic rate,high degree of substrate specificity, negligible formation ofside products, and _____________________.arrow_forwardQuestion 4. Diabetes mellitus possesses a serious health challenge worldwide and there has been an increased awareness for self-monitoring and point of care testing. The development of self- monitoring of blood glucose (SMBG) is probably the most important advance in controlling diabetes since the discovery of insulin. a) Dextrostix, the first glucose meter was invented by Ernie Adams. Briefly discuss. b) There are three principles of enzymatic reactions, utilized by current glucose meters. Compare and briefly discuss these three principles.arrow_forwardThe isomerization of glucose-6-phosphate yields the molecule __________________________.arrow_forward
- Question 18 There is energy requirement for every amino acid added in a growing polypeptide chain. A) True B) Falsearrow_forwardThe cleavage of fructose-1,6-bisphosphate to glyceraldehyde3-phosphate and dihydroxyacetone phosphate is an exampleof an __________________ reactionarrow_forwardThe _____________ is an explanation for why there are fewer tRNAs than expected in living cells.arrow_forward
- Question 4. a) Briefly explain what happens to vo, rate of product formation, when it is affected by an allosteric activator. This conformation of the enzyme active site is known as _ -state. V₁ = kcat [ES]arrow_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_forwardThe amide linkages of proteins are referred to as________________________.arrow_forward
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