UNE CHEM 1005 Unit 3 Exam Questions With Complete Solutions
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Course
CHEM 1005
Institution
University Of New England (UNE
)
Which of the following lipoproteins is responsible for carrying cholesterol from peripheral tissues (i.e skeletal muscle) back to the liver? correct answer: HDL
What is the primary role of LCAT (Lecithin-cholesterol acyltransferase)? correct answer: To esterify cholesterol transported by HDL
...
UNE CHEM 1005 Unit 3 Exam Questions
With Complete Solutions
Which of the following lipoproteins is responsible for carrying
cholesterol from peripheral tissues (i.e skeletal muscle) back to
the liver? correct answer: HDL
What is the primary role of LCAT (Lecithin-cholesterol
acyltransferase)? correct answer: To esterify cholesterol
transported by HDL
Which enzyme is responsible for transferring triacylglycerol
from VLDL to HDL in exchange for cholesterol? correct
answer: LCAT (Lecithin-Cholesterol Acyltransferase)
Which of the following lipoproteins is responsible for the
transport of dietary triacylglycerols in the blood? correct answer:
Chylomicrons
Several hours after a high carbohydrate meal, the newly
synthesized triacylglycerols in the liver will be packaged into
which of the following lipoproteins? correct answer: VLDL
When LDL is taken up by a cell, it will have which of the
following impacts to intracellular cholesterol? correct answer:
Increase in intracellular cholesterol; Decrease on de novo
cholesterol synthesis
, Which of the following apoproteins is required for activation of
lipoprotein lipase? correct answer: ApoCII
Which of the following apoproteins is present on an LDL
particle and required for uptake by peripheral tissues? correct
answer: ApoB 100
Which of the following is the full complement of apoproteins
present on VLDLs? correct answer: ApoB100; ApoCII; ApoE
Which of the following lipoproteins contains ApoA and
ApoCII? correct answer: HDL
Elevated levels of acetyl CoA can be converted into ketone
bodies and can potentially be used as fuel by all of the following
tissues except: correct answer: liver
High levels of acetyl CoA within the mitochondria will
stimulate the activity of which of the following enzymes?
correct answer: Pyruvate carboxylase
When citrate is shuttled out of the mitochondria for fatty acid
synthesis, the initial reaction by citrate lyase generates which of
the following products? correct answer: AcetylCoA and
oxaloacetate
Fatty acid beta oxidation generates several products. Which of
the following are direct products of beta oxidation?
1. NADH
2. FADH2
3. AcetylCoA
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