32. -pleated sheets are associated with what level of protein a. Primary b. Seco

Question

32. -pleated sheets are associated with what level of protein a. Primary b. Secondary e. Quaternary 33. Which of the following is TRUE? d. Tertiary a. Phosphorylation always increases enzme beir phosphoothers are b. Kinases often use AMP as a c. Some enzymes are activated by phos d. ADP is the most common substrate for a ki e. None of the above are true. substrate in their osphorylation reactions. 34. NADP and NAD are which a. Dehydrogenases cosubtrates for which class of enzymes? e. Lyases c. Hydrolases d. Transferases more Glucoser. e KM of hexokinase for glucose 0.15 mM and for fruct glucose 0.15 mM and for fructose the Ka more preferred substrate? a. Glucose. b. Fructose. c. Neither substrate is preferred over the other. d. You cannot tell from the data given. e. None of these answers is correct. 36. The folding of proteins in aqueous solution is driven primariy a. a decrease in the entropy of the peptide upon folding b. an increase in the entropy of celliular water upon folding a decrease in the enthalpy of the peptide upon folding an increase in the enthalpy of water folding. an increase in both c. d. e. entropy and enthalpy of the peptide on folding. 37. Zymogens are inactive precursors of bonds. a. enzymes that can be activated by the reversible cleavage of covalent rreversible cleavage of covalent b. inactive precursors of enzymes that can be activated by the i bonds. inactive forms of enzymes allosteric enzymes that are always in the R state. allosteric enzymes that are always in the T state. that can be activated by phosphorylation by a kinase. c. d. e. The amino acid with a side-chain pK, near neutrality and which therefore plays an important role as a proton donor and/or acceptor in many enzyme catalyzed reactions is: a. cysteine 38. e. tryptophan d. histidine b. aspartate c. lysine Two amino acids frequently found in B turns or bends are a. b. c. d. glutamine and proline e. leucine and isoleucine 39. tyrosine and tryptophan serine and threonine glycine and proline

Explanation / Answer

32. Secondary

33. C.

34. Dehydrogenase

35. Glucose

36. A

37. B

38. Histidine

39. Glycine and proline

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.