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Biomolecules (MCQs)
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Biomolecules (MCQs)
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25 Questions

1. The helical structure of protein is stabilized by
2. In plants, inulin and pectin are
3. Which group contains biocatalysts?
4. Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesized DNA. Which of the following types of chromatin is expected to become radioactive if cells are exposed radioactive thymidine as soon as they enter the S-phase?
5. An enzyme brings about
6. Due to discovery of which of the following in 1980 the evolution was termed as RNA world?
7. The enzymes hexokinase which catalyses glucose to glucose-6-phosphate in glycolysis is inhibited by glucose- 6-phosphate. This is an example of
8. In RNA, thymine is replaced by
9. The RNA that picks up specific amino acids from the amino acid pool in the cytoplasm to ribosome during protein synthesis is called
10. Cofactor (coenzyme) is a part of holoenzyme it is
11. Glycogen is a polymer of
12. Adenine is
13. Length of one turn of the helix in a B-form DNA is approximately
14. The nitrogenous organic base purine occurring in RNA is
15. Cleavage of specific covalent bonds and removal of groups without hydrolysis is the property of
16. Enzymes are absent in
17. Enzyme first used for nitrogen fixation is
18. The most basic amino acid is
19. Spoilage of oil can be detected by which fatty acid?
20. Two free ribonucleotide units are interlinked with
21. Living cell contains 60-75% water. Water present in human body is
22. Most abundant organic compound on earth is
23. Carrier ions like Na+ facilitate the absorption of substances like:
24. Protein synthesis in an animal cell takes place
25. Most abundant organic compound on earth is

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