7.Which of the following is true of water in the hydration layer of proteins?a. It has a lower AS than bulk waterb. It has a higher AS than bulk waterc. It has a lower AH than bulk waterd. It has a higher AH than bulk watere. None of the above8. An enzyme-catalyzed reaction rate will be increased if the energy level of ES can beincreased. Which of the following will not increase the energy level of ES?a. destabilization of ES by solvationb. Destabilization of ES by strain caused by non-covalent interaction between E and Sc. Loss of entropy due to binding of E and Sd. Destabilization of ES by distortione. Destabilization of ES by electrostatic effects9. The catalytic mechanism below is an example of:MechanismO H*CH,C-0NO,CH,C-O + HO--NO, + H*H-0H.HN,a. General base catalysisb. Specific acid catalysisc. Covalent electrophilic catalysisd. Covalent nucleophilic catalysise. None of the above

Enthalpy (H) is the heat content of a system. Change in enthalpy (∆H) is the difference between the…

Answered: 7. Which of the following is true of…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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All sugar residues are in their D-isomeric forms. The second sugar residue is an epimer of: A. altrose at C2. B. glucose at C3. C. altrose at C4. D. glucose at C4. E. talose at C4.
Protein synthesis is which type of reaction? Group of answer choices A. ester synthesis is anabolism B. ester synthesis is catabolism C. amide synthesis is catabolism D. amide synthesis is anabolism Triglyceride synthesis is which type of reaction? Group of answer choices A. amide synthesis is anabolism B. amide synthesis is catabolism C. ester synthesis is catabolism D. ester synthesis is anabolism
15. When an atom or molecule loses one or more electrons, it is said to be: A. energized. B. oxidized. C. polarized. D. reduced. 16. A drug binds to the active site of an enzyme. If it is bound to the active site of the enzyme, it prevents substrate binding. This drug would be considered a(n) A. noncompetitive inhibitor. B. allosteric inhibitor. C. allosteric activator. D. competitive inhibitor. 17. If the AG of a reaction was +31.45 kJoules, which of the following is NOT true regarding this reaction? A. the products have more free energy than the reactants B. the reaction requires an energy input of 31.45 kJoules to proceed. C. The reaction is exergonic D. The reaction is endergonic 18. The large number of alveoli in lungs improve gas exchange by A. decreasing the distance for diffusion B. increasing the surface area for diffusion C. increasing the concentration difference D. changing the diffusion constant 19. Exchange of gases and metabolites between the blood and tissues occurs in…
16. An electrochemical gradient is formed if ions move across a membrane. b. ion concentration changes on one side of a membrane. energy is released. d. salts are produced. с. e. ATP →ADP + Pi
1. What happens to electrons in an oxidation reaction? Electrons are shared equally. Electrons are shared but not equally. Electrons are gained. Electrons are lost. Electrons are sometimes shared equally. a. b. C. d. e. 2. Nucleic acids are polymers of... sugars amino acids lipids nucleotides starch 3. Which term best describes blood, which has a pH of 7.4? weakly acidic weakly basic strongly acidic strongly basic neutral a. b. C. d. e. a. b. C. d. e. 4. Which process involves the addition of water to compounds? condensation a. ن ف نے b. C. d. e. hydrolysis esterification a.2 b.3 c.4 d.5 e.6 phosphorylation polymerization 5. How many functional groups are present in threonine, shown in the following diagram? H₂N+ HO H с CH CH3 threonine
8. Enzyme activity can be registered by one form of covalent modification called phosphorylation. True or false 16. The ionized of all amino acids at pH (7.4) has a net charge of zero. True or false 17. Like beans, eggs would be most likely to be deficient in at least one of essential amino acid. True or false

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