- Vitamins are essential organic compounds that an organism needs in limited amounts. Carotene is a pigment and a precursor to Vitamin A. - Enzymes are biological catalysts, typically proteins. Pepsin is a digestive enzyme. - Hormones are signaling molecules produced by glands. Progesterone is a female sex hormone. - Proteins are complex macromolecules made of amino acids. Keratin is a structural protein found in hair, nails, etc.
Match List I with List II and select the correct answer by using codes given below the lists: List I List II I. Vitamin A) Pepsin II. Enzyme B) Carotene III. Hormone C) Keratin IV. Protein D) Progesterone
Asked in UPPCS Prelims 1996 · Topic: Human Anatomy and Physiology (Integumentary System)
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Answer: B. I - B, II - A, III - D, IV - C
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