Download 1. Triglyceride degradation is not influenced by: A cAMP B Glucagon

1. Triglyceride degradation is not influenced by:
A cAMP
B Glucagon
C Adenylate cyclase
D ATP
E Epinephrine
F HMG CoA
2. How many molecules of ATP are generated of C-18:0?
A 120
B 118.5
C 117
D 122
E 106
3. FA chain builds up during fatty acid synthesis:
A Elongates on Cysteine attached to the KS
B Elongates on Cysteine attched to the ACP
C Is not attached to the complex FA synthase
D Attaches to a reduced glutathione
E A and C are both correct
4. The enzyme HMG CoA reductase is activated by:
A Dephosphorylation
B Phosphorylation
C Insulin
D cAMP
E A and C
F A and D
5. How many NADPH and ATP are needed in order to synthesize C-16:0
from acetyl CoA?
A 7 ATP; 14 NADPH
B 7 ATP; 7 NADPH
C 14 ATP; 14 NADPH
D 8 ATP; 8 NADPH
E 8 ATP; 14 NADPH
6. What is the rate-limiting step in fatty acid synthesis?
A The condensation step of fatty acid synthase
B Cleavage of the fatty acid from the acyl carrier protein (ACP)
C Attachment of a malonyl group to the ACP
D The formation of malonyl CoA
7. Squalene, the 30 carbon precursor of cholesterol, is composed of:
A 5 molecules of mevalonate
B 6 isoprene units
C 15 molecules of acetyl CoA
D 3 molecules of farnesyl pyrophosphate
8. Which of the following lipoproteins participates in reverse
cholesterol transport:
A VLDL
B HDL
C LDL
D chylomicrons
9. Which of the following occurs when cholesterol enters cells:
A Cholesterol is released from the LDL particles when the particles
become internalized by lysozomes
B LDL receptors on the cell surface recognize cholesterol in LDL particles
C The internalized LDL receptor is degraded to amino acids that can be
recycled into new proteins
D The apoB-100 in LDL particles does not get internalized
10. Carnitine is used:
A for transport of fatty acids through the bloodstream to the tissues
B for transport of fatty acids through the inner mitochondrial membrane
C to deliver triacylglycerols from the intestine to the tissues via
the bloodstream
D to transport fatty acids from the bloodstream into cells and tissues
11. Which of the following is a beta-carbon
(picture of fatty acyl CoA with carbons numbered with the carbonyl carbon as #1)
A C-18
B C-2
C C-3
D C-4