term 1 -week 9
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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?

<p>Pyruvate carboxylase (A)</p> Signup and view all the answers

Gluconeogenesis involves the conversion of:

<p>Pyruvate to glucose (B)</p> Signup and view all the answers

Formation of one molecule of glucose from pyruvate requires:

<p>4 ATP, 2 GTP and 2 NADH (A)</p> Signup and view all the answers

Ethanol is oxidized to acetaldehyde in the liver cytoplasm by

<p>Alcohol dehydrogenase (A)</p> Signup and view all the answers

What is the main source of glucose carbons for gluconeogenesis?

<p>Alanine (B)</p> Signup and view all the answers

Which of the following statements about gluconeogenesis is correct?

<p>Glucose 6-phosphatase hydrolyzes glucose 6-phosphate to release glucose into the blood (C)</p> Signup and view all the answers

Which of the following about gluconeogenesis is FALSE:

<p>It consists entirely of the reactions of glycolysis, but in the reverse direction (B)</p> Signup and view all the answers

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