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Questions and Answers

) Oxaloacetate is reduced to malate by

) Pyruvate carboxylase

Malate dehydrogenase (correct)

Pyruvate kinase

Phosphofructokinase-1

Which of the following is an allosteric regulator of PFK1 and FBase-1?

) Glucose

Fructose 6 phosphate

Fructose 1,6 bisphosphate

d) Fructose 2,6 bisphosphate (correct)

Which of the following statements is false about gluconeogenesis?

From the hydrolysis of tri-acyl-glycerol, fatty acids can be used as a carbon source (correct)

) From red blood cells, lactate can be used as a carbon source

From the hydrolysis of tri-acyl-glycerol, glycerol is converted to glucose in gluconeogenesis

From muscle vigorous muscle activity, lactate can be used as a carbon source

) Which enzyme catalyzes the conversion of pyruvate to oxaloacetate?

Pyruvate carboxylase Signup and view all the answers

Gluconeogenesis involves the conversion of:

Pyruvate to glucose Signup and view all the answers

Formation of one molecule of glucose from pyruvate requires:

4 ATP, 2 GTP and 2 NADH Signup and view all the answers

Ethanol is oxidized to acetaldehyde in the liver cytoplasm by

Alcohol dehydrogenase Signup and view all the answers

What is the main source of glucose carbons for gluconeogenesis?

Alanine Signup and view all the answers

Which of the following statements about gluconeogenesis is correct?

Glucose 6-phosphatase hydrolyzes glucose 6-phosphate to release glucose into the blood Signup and view all the answers

Which of the following about gluconeogenesis is FALSE:

It consists entirely of the reactions of glycolysis, but in the reverse direction Signup and view all the answers