Practice questions focused on biomolecules, including their structure, functions, and roles in biological systems. Covers carbohydrates, proteins, lipids, and nucleic acids.
Enzymes, which are proteins, act as biological catalysts, speeding up reactions without being consumed.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Enzymes - Nomenclature, Properties and Mechanism
Lactase, a protein enzyme, catalyzes the hydrolysis of lactose into glucose and galactose.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Enzymes - Nomenclature, Properties and Mechanism
Insulin is a protein hormone that regulates blood glucose levels by facilitating glucose uptake.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Hormones - Protein Hormones and Regulation of Blood Glucose
Insulin lowers blood glucose levels by facilitating glucose uptake into cells.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Hormones - Protein Hormones and Regulation of Blood Glucose
Insulin, a protein hormone, lowers blood glucose by promoting its uptake into cells.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Hormones - Protein Hormones and Regulation of Blood Glucose
Glucagon raises blood glucose levels by promoting glycogenolysis and gluconeogenesis in the liver.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Hormones - Protein Hormones and Regulation of Blood Glucose
Vitamin C deficiency leads to scurvy, characterized by bleeding gums due to impaired collagen synthesis.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
Vitamin E is fat-soluble, stored in the body’s fatty tissues, unlike water-soluble vitamins like B and C.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
Vitamin C (ascorbic acid) is required for the hydroxylation of proline and lysine in collagen synthesis.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
Vitamin H (Biotin) deficiency impairs carboxylation reactions, as it’s a coenzyme for carboxylases.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
Vitamin E (tocopherol) acts as an antioxidant, protecting cell membranes from oxidative damage.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
Scurvy is caused by a deficiency of vitamin C (ascorbic acid), which is crucial for collagen synthesis.
Ref: NCERT Class 12 Chemistry > Chapter 14: Biomolecules > Topic: Vitamins - Types, Coenzymes and Deficiency Diseases - Part 2
