CARBOHYDRATE QUIZ

The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.

CO2

DNA

ATP

aspirin

TRUE ANSWER : ?
YOUR ANSWER : ?

Aldolases splits fructose 1,6 biphosphate into

dihydroxyacetone phosphate

None of these

glyceraldehyde 3- phosphate and dihydroxyacetone phosphate

glyceraldehyde 3- phosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following characteristic enzymes of gluconeogensis is not found in the cytosol?

Both (a) and (b)

Fructose-l,6-bisphosphatase

Pyruvate carboxlyase

Glucose-6-phosphatase

TRUE ANSWER : ?
YOUR ANSWER : ?

Hydrolysis of lactose yields

fructose and galactose

glucose and fructose

galactose and glucose

galactose and fructose

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following enzymes plays an important role in the Cori " cycle?

Glucose-6-phosphate dehydrogenase

Lactate dehydrogenase

Glucose isomerase

Glucokinase

TRUE ANSWER : ?
YOUR ANSWER : ?

The sugar which forms major component of nucleic acids is

maltose

galactose

mannose

ribose

TRUE ANSWER : ?
YOUR ANSWER : ?

Citric acid accumulation would

both (b) and (c)

stimulate fructose 1,6 diphosphatase activity

stimulate phosphofructokinase activity

inhibit phosphofructokinase activity

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is carried out when cAMP functions as a second messenger?

Activates all cytosolic protein kinases

Acts second in importance to AMP

Activates the cAMP-dependent protein kinase

Acts outside the cell to influence cellular processes

TRUE ANSWER : ?
YOUR ANSWER : ?

Fructose diphosphate accumulation would

inhibit glycolysis and stimulate gluconeogenesis

stimulate glycolysis and inhibit gluconeogenesis

stimulate glycolysis and gluconeogenesis

inhibit glycolysis and gluconeogenesis

TRUE ANSWER : ?
YOUR ANSWER : ?

The conversion of pyruvate to lactate is catalysed by

lactate dehydrogenase

pyruvate dismutase

pyruvate carboxylase

pyruvate decarboxylase

TRUE ANSWER : ?
YOUR ANSWER : ?

↑