Name the purines present in DNA.

Important Questions on Biomolecules

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 48

How is oxygen replenished in our atmosphere?

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 49

B-complex is an often prescribed vitamin. What is complex about it, and what is its usefulness?

HARD

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 50

What type of linkage holds together the monomers of D.N.A.?

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 51

Except for vitamin ${\mathrm{B}}_{12}$, all other vitamins of group B should be supplied regularly in diet. Why?

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 52

What D.N.A. or R.N.A. stand for?

EASY

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 53

Give the structural formula of a nucleotide.

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 54

List some important applications of enzymes.

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 55

What is the difference between ribose and deoxyribose.