1
Which level of organization is determined by the sequence of amino acids specified by
the messenger RNA?
a. secondary
b. tertiary
c. primary
d. quaternary
status: not answered ()
correct: c
your answer:
2
Amino acids that have side chains that are not charged are called ________.
a. dicarboxylic amino acids
b. basic amino acids
c. polar amino acids
d. neutral amino acids
status: not answered ()
correct: d
your answer:
3
The compound that denatures the quaternary, tertiary and secondary structures of protein
in the stomach during digestion is:
a. pepsinogen.
b. hydrochloric acid.
c. gastrin.
d. pepsin.
status: not answered ()
, correct: b
your answer:
4
The major way that dipeptides and tripeptides enter the enterocytes through the brush
border is by:
a. the L amino acid transport system.
b. diffusion.
c. peptide carrier.
d. an energy-dependent, sodium-dependent carrier.
status: not answered ()
correct: c
your answer:
5
Glutamine is often added to nutritional mixtures used for hospitalized patients because:
a. it improves gluconeogenesis when the patient is not eating.
b. it is the most important essential amino acid.
c. it will substitute for several essential amino acids during protein synthesis.
it is utilized extensively by gut cells for energy and for cell proliferation and
d. growth of mucosal cells.
status: not answered ()
correct: d
your answer:
6
When the diet is lacking in the amino acids alanine and glycine:
a. protein synthesis will be limited.
b. another amino acid will be substituted so that synthesis is uninterrupted.
c. proteins will be made without one amino acid.
Which level of organization is determined by the sequence of amino acids specified by
the messenger RNA?
a. secondary
b. tertiary
c. primary
d. quaternary
status: not answered ()
correct: c
your answer:
2
Amino acids that have side chains that are not charged are called ________.
a. dicarboxylic amino acids
b. basic amino acids
c. polar amino acids
d. neutral amino acids
status: not answered ()
correct: d
your answer:
3
The compound that denatures the quaternary, tertiary and secondary structures of protein
in the stomach during digestion is:
a. pepsinogen.
b. hydrochloric acid.
c. gastrin.
d. pepsin.
status: not answered ()
, correct: b
your answer:
4
The major way that dipeptides and tripeptides enter the enterocytes through the brush
border is by:
a. the L amino acid transport system.
b. diffusion.
c. peptide carrier.
d. an energy-dependent, sodium-dependent carrier.
status: not answered ()
correct: c
your answer:
5
Glutamine is often added to nutritional mixtures used for hospitalized patients because:
a. it improves gluconeogenesis when the patient is not eating.
b. it is the most important essential amino acid.
c. it will substitute for several essential amino acids during protein synthesis.
it is utilized extensively by gut cells for energy and for cell proliferation and
d. growth of mucosal cells.
status: not answered ()
correct: d
your answer:
6
When the diet is lacking in the amino acids alanine and glycine:
a. protein synthesis will be limited.
b. another amino acid will be substituted so that synthesis is uninterrupted.
c. proteins will be made without one amino acid.
