Biomolecules Class 12 MCQs Questions with Answers

1. Which of the following bases is not present in DNA?

2. An example of non-reducing sugar is:

3. Secondary structure of protein refers to:

4. Glycogen is a branched chain polymer of α-D-glucose units in which chain is formed by C1—C4 glycosidic linkage whereas branching occurs by the formation of C1-C6 glycosidic linkage. Structure of glycogen is similar to _____________________ .

5. Vitamin A is called:

6. Denaturation of protein leads to loss of its biological activity by:

7. Which amino acids is a chiral?

8. Which functional group participates in disulphide bond formation in proteins?

9. Which of the following is not true about amino acids?

10. The enzyme which hydrolysis triglycerides to fatty acids and glycerol is called:

11. In fibrous proteins, polypeptide chains are held together:

12. Which of the following in the sweetest sugar:

13. The vitamins absorbed from intestine along with fats are:

14. How many C-atoms are there is a pyranose ring?

15. The correct statement for protein haemoglobin:

16. Glucose reacts with acetic anhydride to form:

17. Which of the following statements is true for protein synthesis

18. Mark the incorrect example:

19. Which of the following biomolecules is insoluble in water?

20. Which of the following polymer is stored in the liver of animals?