BSC - 1025C 7.) Proteins Exam Questions and
Correct Answers
Proteins ______________.
a.) have nitrogen in their chemical structures
b.) provide 4lcal/gram
c.) all of these are correct
d.) are comprised of amino acids
c.) all of these are correct
A scientist isolates a water-soluble compound from spider venom. The substance has
nitrogen, carbon, hydrogen, and oxygen in its chemical structure. When the scientist
injects the compound under the skin of mice, it causes certain structural materials in
cell membranes to break down. In her next experiment, the researcher will determine
whether the compound is toxic to humans. Based on this information, the compound is a
____________________.
a.) triglyceride
b.) protein
c.) hormone
b.) protein
Every amino acid has ________________ in its chemical structure.
a.) chloride
b.) potassium
, c.) nitrogen
d.) iron
c.) nitrogen
Which of the following amino acids is a dietary essential?
a.) phenylalanine
b.) homocysteine
c.) aspartic acid
d.) alanine
a.) phenylalanine
The chemical attraction between the acid group of one amino acid and the amino group
of another amino acid can form a ______________.
a.) fatty acid chain
b.) peptide bond
c.) partially hydrogenated protein
d.) glycosidic linkage
b.) peptide bond
Instructions for making proteins are coded in a cell's ________________.
a.) golgi apparatus
b.) ribosomes
c.) plasma membrane
d.) DNA
d.) DNA
Correct Answers
Proteins ______________.
a.) have nitrogen in their chemical structures
b.) provide 4lcal/gram
c.) all of these are correct
d.) are comprised of amino acids
c.) all of these are correct
A scientist isolates a water-soluble compound from spider venom. The substance has
nitrogen, carbon, hydrogen, and oxygen in its chemical structure. When the scientist
injects the compound under the skin of mice, it causes certain structural materials in
cell membranes to break down. In her next experiment, the researcher will determine
whether the compound is toxic to humans. Based on this information, the compound is a
____________________.
a.) triglyceride
b.) protein
c.) hormone
b.) protein
Every amino acid has ________________ in its chemical structure.
a.) chloride
b.) potassium
, c.) nitrogen
d.) iron
c.) nitrogen
Which of the following amino acids is a dietary essential?
a.) phenylalanine
b.) homocysteine
c.) aspartic acid
d.) alanine
a.) phenylalanine
The chemical attraction between the acid group of one amino acid and the amino group
of another amino acid can form a ______________.
a.) fatty acid chain
b.) peptide bond
c.) partially hydrogenated protein
d.) glycosidic linkage
b.) peptide bond
Instructions for making proteins are coded in a cell's ________________.
a.) golgi apparatus
b.) ribosomes
c.) plasma membrane
d.) DNA
d.) DNA
