Biological Molecules – Online MCQs Test – Biology MCAT

1. The similarity between DNA and RNA is that both are

2. Sum of all chemical reactions taking place within a cell is called:

3. Which is NOT a characteristic of water?

4. Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by

5. Which one of the following is derived from phosphatidic acid?

6. Following are the important characteristics of enzymes. Pick up the one that can be compromised:

7. Which one of the following is also known as fungal cellulose?

8. Which one of the following amino acid have a polar uncharged R-group?

9. Sixty _______ have been identified:

10. Three nucleotide sequence on tRNA that specifies an amino acid is:

11. In which of the following groups are all polysaccharides?

12. Unlike glycosidic bond, a peptide bond does not involve:

13. Ribose is a:

14. Where are hydrogen bonds important for life?

15. Which of the following is not a polynucleotide?

16. In plants ____________ is also called transport disaccharide as prepared food in plants is transported in the form of sucrose:

17. Phospholipids are composed of one glycerol molecule, two fatty acids and one phosphoric acid molecule usually linked to some:

18. If -OH is present upward on e-1 it is known as:

19. Alpha helix and beta pleated sheets are examples of:

20. Non-competitive inhibitors are not affected by: