RUTGERS MURPHY BIOCHEM EXAM 2
Questions and Answers
1. Membrane remodeling
Requires phospholipases
Requires acyl transferases
Occurs only when cells are under
stress Correct! Both A and B are
correct
Answer Both A and B are correct
2. In simple diffusion a solute
Is propelled by random molecular
motion Moves up its concentration
gradient
Moves across a membrane because of an input of free
energy. Both A and B are correct
Answer Is propelled by random molecular motion
,3. The recycling rate of triacylglycerols to fatty acids is inhibited by
Epinephrine
Norepinephrin
e Insulin
Lypase
A and B
Answer Insulin
4. The benzene ring of the aromatic amino acids is formed by the
Dehydrogenation of cyclohexane
Deamination of dietary phenylalanine
Shikimate pathway
Dehydroxylation of tyrosine
Transamination of a-keto-b-methylvalerate
Answer Shikimate pathway
5. Energy requiring transport mechanisms include
Primary active transport
Diffusion
Facilitated diffusion
Both A and B are correct
,Both A and C are correct
Answer Primary active transport
6. Prostaglandins are involved in
.
Ovulation
Inflammatio
n Digestion
Both A and B are correct
Answer All of the above are correct
7. Inorganic nitrogen is initially assimilated into which of the
following amino acids
Glycine
Alanine
Serine
Glutamine
Leucine
Answer Glutamine
8. Why do most naturally occurring fatty acids have cis double bonds
in them?
, The cis double bond introduces a kink in the chain.
The cis double bond remains results in relatively no change in the fatty
acid direction.
The double bond results in a bend in the molecule elevating the
melting point of the molecule.
The double bond results in a bend in the molecule lowering the
melting point of the molecule.
none of the above
Answer The double bond results in a bend in the molecule lowering the melting point of the
molecule.
9. How many FADH2 molecules would be produced in the oxidation
of palmitic acid (16:0 carbons)?
1
3
5
7
9
Answer 7
10. The basic structure of biological membranes is a
consequence of the physical properties of .
Questions and Answers
1. Membrane remodeling
Requires phospholipases
Requires acyl transferases
Occurs only when cells are under
stress Correct! Both A and B are
correct
Answer Both A and B are correct
2. In simple diffusion a solute
Is propelled by random molecular
motion Moves up its concentration
gradient
Moves across a membrane because of an input of free
energy. Both A and B are correct
Answer Is propelled by random molecular motion
,3. The recycling rate of triacylglycerols to fatty acids is inhibited by
Epinephrine
Norepinephrin
e Insulin
Lypase
A and B
Answer Insulin
4. The benzene ring of the aromatic amino acids is formed by the
Dehydrogenation of cyclohexane
Deamination of dietary phenylalanine
Shikimate pathway
Dehydroxylation of tyrosine
Transamination of a-keto-b-methylvalerate
Answer Shikimate pathway
5. Energy requiring transport mechanisms include
Primary active transport
Diffusion
Facilitated diffusion
Both A and B are correct
,Both A and C are correct
Answer Primary active transport
6. Prostaglandins are involved in
.
Ovulation
Inflammatio
n Digestion
Both A and B are correct
Answer All of the above are correct
7. Inorganic nitrogen is initially assimilated into which of the
following amino acids
Glycine
Alanine
Serine
Glutamine
Leucine
Answer Glutamine
8. Why do most naturally occurring fatty acids have cis double bonds
in them?
, The cis double bond introduces a kink in the chain.
The cis double bond remains results in relatively no change in the fatty
acid direction.
The double bond results in a bend in the molecule elevating the
melting point of the molecule.
The double bond results in a bend in the molecule lowering the
melting point of the molecule.
none of the above
Answer The double bond results in a bend in the molecule lowering the melting point of the
molecule.
9. How many FADH2 molecules would be produced in the oxidation
of palmitic acid (16:0 carbons)?
1
3
5
7
9
Answer 7
10. The basic structure of biological membranes is a
consequence of the physical properties of .
