Biochemistry – MCQs

448 questions. Click to practice.

Correct options are highlighted when revealed.

1.Which of the following compounds acts as an inhibitor of HMG-CoA reductase?

2.During metabolism, HMG-CoA is produced from all of the following except which one?

3.Which compound serves as the initial substrate for the biosynthesis of cholesterol?

4.Which of the following is NOT synthesized from cholesterol?

5.Which organ is unable to utilize ketone bodies as an energy source?

6.Identify the compound that is not classified as a ketone body:

7.In which organ does the production of ketone bodies primarily occur?

8.Which metabolic process depends on NADPH as a necessary cofactor?

9.Which enzyme acts as the rate-limiting step in the synthesis of fatty acids?

10.Which substance accumulates excessively in the central nervous system in Niemann-Pick disease?

11.Identify the compound that is classified as a phospholipid from the options below.

12.Unsaturated fatty acids are transformed into which of the following compounds?

13.What substance is used to hydrolyze fats during the process of saponification?

14.Which type of lipid primarily composes the structure of the cell membrane?

15.What is the primary function of cholesterol in the body?

16.Which fatty acid cannot be produced naturally by the human body?

17.Where does the process of fatty acid breakdown primarily take place?

18.Which statement about G protein-coupled receptors (GPCRs) is accurate?

19.What role do nonpolar lipids primarily serve in biological systems?

20.Iron is found in all of the following molecules except which one?