Biochemistry Mock Test 6

10%

Question 1 of 10

1. Hydrolysis of lactose yields ___________

D-fructose and D-glucose

D-galactose and D-fructose

D-glucose and D-glucose

D-galactose and D-glucose

Question 1 of 10

Question 2 of 10

2. What does first law of thermodynamics state?

Energy can neither be destroyed nor created

All living organisms are composed of cells

Energy cannot be 100 percent efficiently transformed from one type to another

Input of heat energy increases the rate of movement of atoms and molecules

Question 2 of 10

Question 3 of 10

3. When blood sugar levels fall, glycolysis is halted in liver to allow ___________

Gluconeogenesis

Aerobic respiration

Anaerobic respiration

Homeostasis

Question 3 of 10

Question 4 of 10

4. Gain of electrons can be termed as ___________

Oxidation

Anabolism

Reduction

Metabolism

Question 4 of 10

Question 5 of 10

5. How many steps are catalyzed by different enzymes in glycolysis and gluconeogenesis?

Question 5 of 10

Question 6 of 10

6. Conversion of xylulose 5-phosphate to ribulose 5-phosphate is catalyzed by ___________

Transketolase

Phosphopentose epimerase

Phosphopentose isomerase

Transaldolase

Question 6 of 10

Question 7 of 10

7. Which one out of the following is not a NAD⁺ requiring enzyme?

Pyruvate dehydrogenase complex

Acyl co-A dehydrogenase

Maltate dehydrogenase

Lactate dehydrogenase

Question 7 of 10

Question 8 of 10

8. What is the relationship between ∆G and ∆G^'°?

∆G = ∆G^'° + RTln([products]/[reactants])

∆G = ∆G^'° + RTln([reactants]/[products])

∆G = ∆G^'° - RTln([reactants]/[products])

∆G = ∆G^'° - RTln([products]/[reactants])

Question 8 of 10

Question 9 of 10

9. Anabolism and catabolism are chemically linked in the form of __________

ASP

ADP

ATP

Phosphodiester linkage

Question 9 of 10

Question 10 of 10

10. What is the main source of glucose carbons for gluconeogenesis?

Alanine

Cysteine

Threonine

Guanine

Question 10 of 10