🔬 Science & TechnologyUPSC 1996Space & Space Technology

Match List-I with List-II and select the correct answer by using the codes given below: List- I List-IIA. Vitamin1. PepsinB. Enzyme2. CaroteneC. Hormone3. KeratinD. Protein4. ProgesteroneCodes:

aA – 1; B – 2; C – 3; D – 4
bA – 2; B – 1; C – 4; D – 3
cA – 2; B – 1; C – 3; D – 4
dA – 1; B – 2; C – 4; D – 3
✓ Correct answer: b) A – 2; B – 1; C – 4; D – 3
ExplanationOption (b) is correct: A is matched with 2: Carotene, specifically beta-carotene, is a provitamin A carotenoid found in plant foods.It is converted into vitamin A (retinol) in the human body which plays a crucial role in vision, immune function, and skin health.B is matched with 1: Enzymes are biological catalysts that speed up chemical reactions in the body.Pepsin is a digestive enzyme produced in the stomach that breaks down proteins into smaller peptides.C is matched with 4: Hormones are signaling molecules produced by glands that regulate physiological processes.Progesterone is a steroid hormone involved in the menstrual cycle, pregnancy, and embryogenesis.D is matched with 3: Proteins are large biomolecules made of amino acids that perform a variety of functions in the body.Keratin is a structural protein found in hair, nails, and the outer layer of skin.515

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