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Biochem exam 2- module 3 2024/2025 Questions With Completed & Verified Solutions.
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Biochem exam 2- module 3 2024/2025 Questions With Completed & Verified Solutions.
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Biochem exam 2- module 3 quizLactose intolerance arises from
A. Bacteria in the intestine that produce toxic metabolites
B. The inability of intestinal enzymes to cleave the lactose
C. A sensitivity to galactose
D. A sensitivity to glucose
E. An allergic reaction to glucose - ANS B. The inability of intestinal enzymes to cleave the
lactose
In glycoproteins carbohydrate is most often linked to threonine, asparagine or __________.
A. Serine
B. Lysine
C. Valine
D. Aspartic acid
E. Tyrosine - ANS A. Serine
Under stressful conditions epinephrine is released from the adrenal medulla. The release of
epinephrine has which of the following effects on glucose metabolism?
A. Glycogenolysis is stimulated
B. Glycogenesis is inhibited
C. Adenylate cyclase is activated
D. Both A and B are correct
E. All of the above are correct - ANS E. All of the above are correct
The preferred energy source of the brain is __________.
A. Fructose
B. Glucose
C. Arabinose
D. Maltose
E. Sucrose - ANS B. Glucose
Which of the following is not a homoglycan?
A. Cellulose
B. Glycogen
C. Starch
D. Heparin
, E. Amylose - ANS D. Heparin
Which of the following carbohydrates is a nonreducing sugar?
A. Glucose
B. Fructose
C. Lactose
D. Sucrose
E. Ribose - ANS D. Sucrose
How many stereoisomers are possible for an aldohexose
A. 4
B. 8
C. 12
D. 16
E. 32 - ANS D. 16
The binding of insulin to receptors on the surface of muscle cells stimulates which of the
following processes
A. Glycogenolysis
B. Glycogenesis
C. Release of ATP
D. Formation of cyclic AMP
E. Release of glucagon - ANS B. Glycogenesis
The accumulation of AGEs is linked to which of the following diseases?
A. Atherosclerosis
B. Arthritis
C. Diabetes
D. Both A and B are correct
E. All of the above are correct - ANS E. All of the above are correct
Fructose-2,6-bisphosphate
A. Is an indicator of high cellular glucose concentration
B. Is formed by PFK-1
C. Activates aldolase
D. Both A and B are correct
E. All of the above are correct - ANS A. Is an indicator of high cellular glucose concentration
An enzyme family called the _________ catalyzes the phosphorylation of hexoses in the body.
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