Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 20, Problem 32P
Interpretation Introduction
Interpretation:
Ribose can be used as a fuel when liver and other meats contain large quantities of
Concept introduction:
RNA or Ribonucleic acid is a
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Express your answer briefly, not more than 30 words. Express your answer in your own words.
What is the metabolic basis for the observation that many adults cannot ingest large quantities of milk without developing gastric difficulties?
No animal can digest cellulose. Reconcile this statement with the fact that many animals are herbivores that depend heavily on cellulose as a food source.
Some athletes eat diets high in carbohydrates before an event. Suggest a biochemical basis for this practice.
Briefly indicate the role of glycoproteins as antigenic determinants for blood groups.
Advertisements for a food supplement to be taken by athletes claimed that the energy bars contained the two best precursors of glycogen. What were they?
Choose from A-F. This amino acid may serve as a phosphorylation site, and turn on or off the protein.
H3N-C-H
H3N-C-H
CH2
H2N
CH 2
H-C-OH
CH2
H2C
CH2
CH3
CH3
Choice "A"
Choice "B"
Choice "C"
COO
H,N-C-H
H,N-C-H
H3N-C-H
CH2
CH2
C=CH
C-NH
CH2
NH
| CH
SH
C-N
Choice "E"
Choice "F"
Choice "D"
Unanswered
Sa
polysaccharides 1
Why are humans not able to digest cellulose?
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
al
Humans do not possess the enzyme necessary to hydrolyze the 1-4-B-glycoside linkages found in cellulose.
Humans cannot digest glucose.
Humans do not possess the enzyme necessary to unwind the helical shape of the cellulose molecule.
P.
Humans do not possess the enzyme necessary to oxidize OH groups in cellulose.
Unanswered
physical preperties 2
Chapter 20 Solutions
Biochemistry
Ch. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10P
Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - Prob. 39PCh. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48P
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- . Provide an explanation for the fact that a-D-mannose is more stable than B-D-mannose, whereas the opposite is true for glucose.arrow_forwardolive oil. Question 29 The sequence of amino acids in a protein is its structure. primary secondary tertiary quaternary hepternaryarrow_forwardThis is DNA. Locate the nitrogen bases (nitrogens are blue). Where are they located in the molecule?Locate the sugars and phosphates, and describe their location. Adjacent nucleotides are linked by covalent phosphodiester bonds (-O-P-O-) produced by a condensation reaction. What parts of the adjacent nucleotides are linked by phosphodiester bonds?Two nitrogenous bases extending towards the middle of the double helix. Are there any covalent bonds between these bases?If there are no covalent bonds between these bases, what other kinds of bonds might hold the two strands of the double helix together?arrow_forward
- Starch and Cellulose. Which one can be hydrolyzed by you and most mammals? Why? Also, discuss the reason for Why the other polysaccharide (name - which one) cannot be digested by most mammals and you. Can you think of some species that are able to digest it? How?arrow_forwardBiochemistry. (i) Explain the chemical structure of Echinolone and where it has found. (ii) state the nature of Echinolone such as volatile or non-volatile. Why? (iii) Explain the physical and chemical properties of Echinolone.arrow_forwardESSAY TYPE. Briefly describe how monosaccharides like glucose and fructose assume or transform into its corresponding Haworth structure.arrow_forward
- Choose all that apply. This molecule is O || O-P-O-P-O-P-O- 0 O a lipid O™ one of the building blocks of protein a nucleotide triphosphate ATP one of the building blocks of RNA a protein O™ one of the building blocks of DNA a nucleic acid a carbohydrate the energy currency of the cell an amino acid OIPIO о O™ N H₂N OH OH N Narrow_forwardLactose is a disaccharide formed by the formation of a bond between glucose and glycosidic; lactose glycosidic; galactose hydrogen; sucrose hydrogen; fructosearrow_forwardIf phenylalanine was not an essential amino acid, would diet therapy (the elimination of phenylalanine from the diet) for PKU work?arrow_forward
- Ketone bodies are used as an alternative source of fuel during starvation. Describe how ketones are synthesized.arrow_forwardLong explanations are not needed. Direct answers would suffice. a. Which of the following is not a complex conjugated carbohydrate? I. lipopolysaccharide II. proteoglycan III. glycoprotein IV. peptidoglycan V. oligosaccharide b. Gluconic acid is derived from _______ while glucuronic acid is derived from ______. I. glucose: gulose II. galactose: glucose III. gulose: glucose IV. glucose: glucose V. glucose: galactosearrow_forwardModified TRUE or FALSE. Write the word TRUE if the statement is correct. If the statement is false, write the correct word to make the statement true. 1. The L-form is the naturally-occurring form of amino acids.arrow_forward
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