(11) Which of the following causes denaturation of a protein when disulfide bonds are present? (A) heat (B) pH changes (C) reducing agent (D) detergent (E) all of the above

3) When glucagon binds to its receptor on a liver cell, which of the following sequence of eventsoccurs to activate protein kinase A?(A) activation of adenylate cyclase, activation of G protein, production of cAMP(B) activation of G protein, activation of adenylate cyclase, production of cAMP(C) activation of G protein, production of cAMP, activation of adenylate cyclase(D) production of cAMP, activation of adenylate cyclase, activation of G protein(E) none of the above

(11) Which of the following causes denaturation of a protein when disulfide bonds are present?

(A) heat

(B) pH changes

(C) reducing agent

(D) detergent

(E) all of the above

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