The first set of questions on vitamins covers how they are classified, the difference between fat-soluble and water-soluble types, and the part they play as coenzymes in the body. Questions also link individual vitamins to the deficiency diseases that follow when they are missing from the diet.
Vitamins, such as B vitamins, often function as coenzymes or their precursors in metabolic pathways.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin H (Biotin) functions as a coenzyme in carboxylation reactions, aiding in the transfer of carboxyl groups.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin B₁ (Thiamine) deficiency leads to beriberi, affecting the nervous and cardiovascular systems.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin B group vitamins are water-soluble and cannot be stored in the body, requiring regular dietary intake.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin D deficiency causes rickets, a condition marked by poor bone mineralization in children.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin B₂ (Riboflavin) deficiency leads to cheilosis, characterized by cracks at the mouth corners.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin B₁ (Thiamine) is a precursor to TPP, a coenzyme in decarboxylation reactions.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin D enhances calcium absorption in the intestines, aiding bone health.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin A (retinol) is essential for forming rhodopsin, a visual pigment in the retina.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin A is essential for vision, and its deficiency leads to night blindness.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin D is synthesized in the skin from 7-dehydrocholesterol upon exposure to UV light.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
Vitamin B₃ (Niacin) deficiency causes pellagra, which includes dermatitis among its symptoms.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 1
