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WorksheetsCPL metabolism
Total questions: 16
Worksheet time: 8mins
Which of the following enzyme catalyzes the first step of glycolysis?
Hexokinase
Pyruvate kinase
Glucokinase
Phosphofructokinase-1
Cleavage of Fructose 1, 6-biophosphate yields
Two aldoses
Two ketoses
An aldose and a ketose
Only a ketose
Dihydroxyacetone phosphate is rapidly and reversibly converted to
Glyceraldehyde 3-phosphate
1, 3-bis-phosphoglycerate
Fructose 1, 6-bisphosphate
Fructose 6-phosphate
Dihydroxyacetone phosphate is rapidly and reversibly converted to
Glyceraldehyde 3-phosphate
1, 3-bis-phosphoglycerate
Fructose 1, 6-bisphosphate
Fructose 6-phosphate
The breakdown of glycogen to form glucose occurs
in the liver by phosphorolysis.
in the muscles by phosphorolysis.
in the liver by hydrolysis.
in the muscles by hydrolysis.
a and b are both correct.
The precursor to glycogen in the glycogen synthase reaction is
glucose-1-P
glucose-6-P
UDP-glucose
UTP-glucose
None of the above
Where is the main storage of glycogen
Liver
Muscle
Liver and muscle
Pancreas
In glycogen, the chains are formed by ____ glycosidic linkages while the branches are ____ glycosidic linkages.
alpha-1,4/alpha-1,6
alpha-1,4
alpha-1,6
None of these
The key regulatory enzyme in glycogen synthesis is ____.
Phosphorylase
Hexokinase
Glocokinase
Phosphofructokinase
This hormone leads to glycogen synthesis.
Glycogenin
Insulin
Secretin
Chymotrypsin
when does glycogenolysis happen?
After rich meal
Fasting
during fasting, and exercising skeletal muscle
AfterExercises
What does glycogenolysis mean?
To break down glycogen
The process to get energy
Storing glucose for energy
To build up glycogen
The enzyme which catalyzes the conversion of pyruvate to oxaloacetate
Pyruvate carboxylase
Pyruvate dehydrogenase
Pyruvate kinase
Phosphofructokinase-1
Gluconeogenesis involves conversion of
Glucose to pyruvate
Pyruvate to glucose
Phosphoenolpyruvate to glucose
Pyruvate to fructose
Cleavage of Fructose 1, 6-biophosphate yields
Two aldoses
Two ketoses
An aldose and a ketose
Only a ketose
Cleavage of Fructose 1, 6-biophosphate yields
Two aldoses
Two ketoses
An aldose and a ketose
Only a ketose
