Cell Molecular Biology 29. The primary response proteins in a steroid hormone re

Question

Cell Molecular Biology

29. The primary response proteins in a steroid hormone response usually (choose all that apply)

a. activate the expression of secondary response proteins

b. are cytoskeleton proteins such as actin and myosin

c. degrade the steroid hormone

d. inhibit the expression of more primary response proteins

e. produce changes in metabolism like use of lactose rather than glucose

30. All of the following are possible functions of proteins in a signaling cascade except

a. amplification

b. integration

c. receive signal

d. scaffolding

e. all of the above are possible functions

31. All of the following are ways to silence a signaling pathway at the receptor level except

a. block the receptor by binding a protein

b. destroy the receptor in the lysosome

c. reduce expression of the receptor

d. sequester the receptor into endosomes

e. all of the above are ways to silence a receptor at the receptor level

32. Which of the following is evidence for the cisternal maturation model of secretion? (choose all that apply)

a. endo H sensitivity experiment

b. secretion of algal scales

c. secretion of collagen

d. secretion of Vsv-G

e. all of the above support cisternal maturation

Please I need help. I will rate answer.

Explanation / Answer

29. a. activate the expression of secondary response proteins

d. inhibit the expression of more primary response proteins

30. e. all of the above are possible functions

In a signal transduction pathway, proteins are involved at each stage including signal receival (by means of receptor proteins), amplification (needs proteins, eg: protein kinase A), integration (integrating proteins), and scaffolding (scaffold proteins).

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