BIOC212 2022 Post test 1 Quiz

The deficiency of which of the following enzyme leads to galactosemia?

• Galactokinase

• Pyruvate Kinase

• PFK-1

• PFK-2

• Aldolase

Which of the following enzyme is responsible for the conversion of glucose 1-phosphate to glucose 6-phosphate?

• Glycogen Phosphorylase

• Isomerase

• Phosphoglucomutase

• Epimerase

• Triose Phosphate Isomerase

Which supports glycolysis?

• Pyruvate to glucose

• Pyruvate from glucose

• Glucose from Pyruvate

• Glucose to Pyruvate

Which supports gluconeogenesis?

• Pyruvate to glucose

• Pyruvate from glucose

• Glucose from Pyruvate

• Glucose to Pyruvate

Glycogenesis is the breakdown of glucose

• False

• True

Hydrolysis of Lactose yields

• D-galactose and D-Glucose

• D-glucose and D-glucose

• D-galactose and D-fructose

• D-fructose and D-glucose

Hydrolysis of Sucrose yields

• D-galactose and D-Glucose

• D-glucose and D-glucose

• D-galactose and D-fructose

• D-fructose and D-glucose

isomerizes glucose 1-phosphate to glucose 6-phosphate to enter glycolysis

• Function of galactokinase

• Function of fructokinase

• Function of phosphoglucomutase

• Function of UDP-hexose 4-epimerase

catalyzes reaction UDP-glucose with galactose 1-phosphate to produce UDP-galactose and glucose 1-phosphate

• function of aldolase B (fructose 1-phosphate aldolase)

• function of phosphoglucomutase

• function of UDP-hexose 4-epimerase

• function of galactose 1-phosphate uridylyltransferase

Difference between Glucose and Galactose

• Molecular mass

• Spatial position of OH^- group in carbon 4

• Charge

• Polarity