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Essential Biochemistry - Mechanism Of Hormone Action (Section 2)

1
Which enzyme is activated by cAMP?
Answer
(B)
Protein kinase A
2
Hormones classified based on:
Answer
A
B
3
Which of the following is the initial step of hormone action?
Answer
(A)
Binding of hormone to receptor
4
Where do lipid-soluble hormones bind to their receptors?
Answer
B
C
5
Which second messenger mobilizes intracellular calcium?
Answer
(B)
IP3
6
Water soluble hormones have cell surface receptors, except:
Answer
(C)
Thyroxine
7
Which of the following is a second messenger?
Answer
A
B
8
Which of the following is a product of phospholipase C?
Answer
B
C
9
Hormone that have intracellular receptor:
Answer
(A)
Glucocorticoids
10
What are the major components of hormone-receptor complex in the nucleus?
Answer
(A)
Hormone, receptor, and DNA
11
Second messenger that mobilizes intracellular calcium is:
Answer
(C)
Inositol triphosphate
12
What type of hormones are classified as Group I?
Answer
(C)
Lipophilic hormones
13
What is the role of a hormone response element (HRE)?
Answer
(B)
To bind the hormone-receptor complex to DNA
14
Hormones that bind to surface receptors of cells use:
Answer
(B)
second messengers
15
Which of the following acts as a second messenger in the phosphatidylinositol pathway?
Answer
(B)
IP3
16
Which of the following hormones acts through a cell membrane receptor?
Answer
(C)
Insulin
17
What molecules often act as second messengers?
Answer
(B)
Lipids
18
Which of the following is NOT a function of the G protein in hormone action?
Answer
(D)
Binding to hormone-receptor complex
19
What type of hormones use intracellular receptors?
Answer
A
B
20
Which of the following is involved in the action of Group II hormones?
Answer
A
B
C