حكاية صيدلاني🖤✌🏼
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gluconeogenesis (2).pdf
67.6 KB
gluconeogenesis mcq
Carbohydrate Metabolism.pdf
132.1 KB
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Gluconeogenesis+Glycolysis
MCQ on Pentose Phosphate Pathway.pdf
197 KB
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Pentose phosphate
MCQ on Fatty Acid Synthesis and Breakdown.pdf
166.9 KB
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Fatty acid synthesis and breakdown
MCQ citric acid cycle.pdf
43.3 KB
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Citric acid cycle
MCQ on Glycogen Synthesis and Breakdown.pdf
69.5 KB
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Glycogen metabolism and breakdown
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الملزمة السادسة mcq

Metabolism of glycogen
The principal enzymes controlling glycogen metabolism
glycogen phosphorylase and glycogen synthase are regulated in
Anonymous Quiz
9%
A. opposite directions by allosteric mechanisms
13%
B. covalent modification by reversible phosphorylation
72%
C. Both
5%
D. None
phosphorylation of glycogen synthase........ its activity
Anonymous Quiz
46%
Increase
54%
reduce
Phosphorylation is increased in response to cyclic AMP (cAMP) formed from ATP by adenylyl cyclase at the inner surface of cell membranes in response to hormones such as
Anonymous Quiz
8%
A. glucagon
4%
B. norepinephrine
7%
C. epinephrine
30%
D. B and C
51%
E. All the above
The hormone that inhibits phosphorylation is
Anonymous Quiz
9%
A. glucagon.
12%
B. norepinephrine / epinephrine,
63%
C. insulin
16%
D. All above
• Active phosphorylase a in both tissues(liver and muscle) is allosterically inhibited by
Anonymous Quiz
18%
A. glucose 6-phosphate;
14%
B. free glucose
5%
C. ATP
38%
D. A and C
26%
E. All the above
Muscle phosphorylase kinase, which activates glycogen phosphorylase, is a tetramer of..... different subunits,
Anonymous Quiz
30%
A. 2
43%
B. 4
18%
C. 6
8%
D. 8
...... different protein kinases act on glycogen synthase,
Anonymous Quiz
46%
A. 2
21%
B. 4
27%
C. 6
6%
D. 8
Two of the protein kinases of glycogen synthase, are
Anonymous Quiz
23%
A. cAMP-dependent protein kinase,
12%
B. Ca2+/calmodulin dependent
64%
C. Both
1%
D. None