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BioChem C785 - WGU - Module 5 - all questions and answers latest 2021
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BioChem C785 - WGU - Module 5 - all questions1. What vitamin does not travel through the bloodstream in the form of a
lipid micelle?: Answer- Vitamin C
2. Which lipid has a 4-ring structure?: Answer- Sterol
3. Which of the following situations is MOST likely to increase the rate of
beta oxidation?: Answer- fasting
4. A patient who is on a no-fat diet is at particular risk of deficiency in::
Answer- Vitamin A
5. During starvation, triglycerides can help supply some of the body's glu-
cose needs. Which breakdown product of triglycerides can be used to
make glucose?: Answer- glycerol
6. CH3(CH2)6CH=CH(CH2)2COOH: Answer- liquid at the lowest
temperature
7. Describe the steps involved in fatty acid synthesis: Answer- Acetyl-CoA
is transport- ed to the cytoplasm - Biotin transfers a carboxylate group
to acetyl-CoA - the malonyl group is transferred to a carrier protein -
malonyl ACP combines with acetyl-CoA, - malonyl-CoA is added
repeatedly to the growing fatty acid
8. What fatty acid will produce 8 Acetyl CoA molecules
after it is completely metabolized via beta oxidation?:
- Answer-
CH3(CH2)4CH=CH(CH2)4CH=CH(CH2)8COOH
1/3
, 9. Which set of molecules are produced by the beta oxidation of fatty
acids?-
: Answer- Acetyl CoA, NADH, FADH2
10. Gastric bypass surgery results in an increase in the production of
GLP-1, a peptide that promotes insulin secretion. This is thought to be
associated with the tendency for these patients' type II diabetes to resolve
after the surgery. If a gastric bypass patient has a mutation in GLP-1 that
impairs
its function, what is to be expected?: The patient would have reduced
insulin secretion compared to patients with normal GLP-1, and this
reduction results in increased fatty acid oxidation
11.Through mandatory state testing, a 2-day-old newborn is found to have
a medium chain acyl-COA dehydrogenase deficiency (MCADD). This
enzyme deficiency interferes with the baby's ability to break down medium
chain fatty acids via beta oxidation. Her parents need to be given specific
instructions on what the baby can ingest. What is correct?: She will not be
able to utilize adipose tissue for ATP production as effectively as a
baby without the disorder
12.Which of the following contributes to the development of ketoacidosis
in a diabetic patient: A reduction in citric acid cycle intermediates,
which decreases
2/3
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