Test Bank For
Biochemistry 7th Edition By
Reginald Garrett, Charles
Grisham
(All Chapters 1-32, 100%
Original Verified, A+ Grade)
All Chapters Arranged Reverse:
32-1
This is The Original Test Bank
For 7th Edition, All other Files in
The Market are
Fake/Old/Wrong Edition.
,
,Chapter 32 - The Reception and Transmission of Extracellular Information
1. Hormones and other signal molecules bind with ____ affinities to their receptors and are produced at concentrations
____ their KD values.
a. low; far above
b. moderate; far above
c. moderate; equivalent to
d. high; far below
e. very high; equivalent to
ANSWER: e
2. Steroid hormones, such as glucocorticoids, effect their action by:
a. binding to a plasma membrane receptor, which stimulates a signal transduction
pathway within the cell
b. binding to a plasma membrane receptor, which stimulates the receptor to enter the cell
c. entering into the cell and affecting the production of secondary messengers
d. entering into the cell and then acting as transcription regulators
e. both a and d are correct
ANSWER: e
3. All are unifying features of polypeptide hormones EXCEPT that they are:
a. originally synthesized with signal sequences.
b. synthesized as inactive preprohormones.
c. activated from preprohormones to hormones by phosphorylation.
d. may produce several different peptide hormones with suitable processing.
e. all are true.
ANSWER: c
4. Each of the following statements is true EXCEPT:
a. epinephrine is an amino acid derivative
b. steroid hormones can enter cells and regulate
transcription
c. insulin is a polypeptide hormone
d. progesterone is a polypeptide hormone
e. all of the above are true
ANSWER: d
5. Which of the following doe NOT correctly pair a hormone with its function?
a. ACTH − promotes production of thyroxin
b. calcitonin − regulates plasma Ca2+
c. FSH − stimulates processes within the gonads
d. insulin − regulates metabolism and blood
glucose
e. prolactin − stimulates milk production
ANSWER: a
6. All are enzymes in the enzyme cascade for activation of glycogen phosphorylase EXCEPT:
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, Chapter 32 - The Reception and Transmission of Extracellular Information
a. adenylyl cyclase.
b. protein kinase A.
c. hormone sensitive
lipase.
d. phosphorylase kinase.
e. all are in the cascade.
ANSWER: c
7. G-proteins are associated with which receptor superfamily?
a. oligomeric ligand-gated ion channels
b. 7-transmembrane segment (7-TMS) receptors
c. cell adhesion protein receptors
d. single-transmembrane segment catalytic
receptors
e. none of the above
ANSWER: b
8. All are components of the G-protein-coupled receptors (GPCRs) hormone signal transduction unit EXCEPT:
a. protein kinase A.
b. adenylyl cyclase.
c. hormone receptor.
d. G-protein.
e. all of the above.
ANSWER: e
9. Receptor tyrosine kinases have been called ____ as a result of their ____ and ____.
a. membrane-associated allosteric enzymes; induced conformation changes; oligomeric
interactions
b. adrenergic receptors; binding insulin; binding epinephrine
c. GTP-binding proteins; GTPase activity; guanylyl cyclase activity
d. multi-TMS receptors; complex structure; G-protein binding
e. none of the above
ANSWER: a
10. All are domains of receptor tyrosine kinase EXCEPT:
a. adenylyl cyclase activity domain.
b. glycosylated extracellular receptor-binding domain.
c. a single transmembrane α-helix.
d. intracellular tyrosine kinase domain.
e. regulatory domain with phosphorylation sites.
ANSWER: a
11. The insulin receptor is in what class of tyrosine kinase receptors?
a. Class I with 2 Cys-rich repeat sequences
b. Class II with a2b2 tetrameric structure
Copyright Cengage Learning. Powered by Cognero. Page 2
Biochemistry 7th Edition By
Reginald Garrett, Charles
Grisham
(All Chapters 1-32, 100%
Original Verified, A+ Grade)
All Chapters Arranged Reverse:
32-1
This is The Original Test Bank
For 7th Edition, All other Files in
The Market are
Fake/Old/Wrong Edition.
,
,Chapter 32 - The Reception and Transmission of Extracellular Information
1. Hormones and other signal molecules bind with ____ affinities to their receptors and are produced at concentrations
____ their KD values.
a. low; far above
b. moderate; far above
c. moderate; equivalent to
d. high; far below
e. very high; equivalent to
ANSWER: e
2. Steroid hormones, such as glucocorticoids, effect their action by:
a. binding to a plasma membrane receptor, which stimulates a signal transduction
pathway within the cell
b. binding to a plasma membrane receptor, which stimulates the receptor to enter the cell
c. entering into the cell and affecting the production of secondary messengers
d. entering into the cell and then acting as transcription regulators
e. both a and d are correct
ANSWER: e
3. All are unifying features of polypeptide hormones EXCEPT that they are:
a. originally synthesized with signal sequences.
b. synthesized as inactive preprohormones.
c. activated from preprohormones to hormones by phosphorylation.
d. may produce several different peptide hormones with suitable processing.
e. all are true.
ANSWER: c
4. Each of the following statements is true EXCEPT:
a. epinephrine is an amino acid derivative
b. steroid hormones can enter cells and regulate
transcription
c. insulin is a polypeptide hormone
d. progesterone is a polypeptide hormone
e. all of the above are true
ANSWER: d
5. Which of the following doe NOT correctly pair a hormone with its function?
a. ACTH − promotes production of thyroxin
b. calcitonin − regulates plasma Ca2+
c. FSH − stimulates processes within the gonads
d. insulin − regulates metabolism and blood
glucose
e. prolactin − stimulates milk production
ANSWER: a
6. All are enzymes in the enzyme cascade for activation of glycogen phosphorylase EXCEPT:
Copyright Cengage Learning. Powered by Cognero. Page 1
, Chapter 32 - The Reception and Transmission of Extracellular Information
a. adenylyl cyclase.
b. protein kinase A.
c. hormone sensitive
lipase.
d. phosphorylase kinase.
e. all are in the cascade.
ANSWER: c
7. G-proteins are associated with which receptor superfamily?
a. oligomeric ligand-gated ion channels
b. 7-transmembrane segment (7-TMS) receptors
c. cell adhesion protein receptors
d. single-transmembrane segment catalytic
receptors
e. none of the above
ANSWER: b
8. All are components of the G-protein-coupled receptors (GPCRs) hormone signal transduction unit EXCEPT:
a. protein kinase A.
b. adenylyl cyclase.
c. hormone receptor.
d. G-protein.
e. all of the above.
ANSWER: e
9. Receptor tyrosine kinases have been called ____ as a result of their ____ and ____.
a. membrane-associated allosteric enzymes; induced conformation changes; oligomeric
interactions
b. adrenergic receptors; binding insulin; binding epinephrine
c. GTP-binding proteins; GTPase activity; guanylyl cyclase activity
d. multi-TMS receptors; complex structure; G-protein binding
e. none of the above
ANSWER: a
10. All are domains of receptor tyrosine kinase EXCEPT:
a. adenylyl cyclase activity domain.
b. glycosylated extracellular receptor-binding domain.
c. a single transmembrane α-helix.
d. intracellular tyrosine kinase domain.
e. regulatory domain with phosphorylation sites.
ANSWER: a
11. The insulin receptor is in what class of tyrosine kinase receptors?
a. Class I with 2 Cys-rich repeat sequences
b. Class II with a2b2 tetrameric structure
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