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35. Which of the following is a plant secondary metabolite? (1)  Kaurenoic acid (2) Abietic acid (3) Proline (4) Pyruvate Correct answer: (1) Kaurenoic acid Explanation: Kaurenoic acid is a diterpenoid, […]

Which one of the following secondary metabolites is characterized by the presence of a central carbon atom that is bound by a sulphur to a glycone group, and N by […]

33.Which of the following class of plant secondary metabolite is present specially in the order Brassicales? (1) Glucosinolates      (2) Alkaloids (3) Phenolics             (4) Terpenoids Correct answer: (1) Glucosinolates Explanation: Glucosinolates are […]

32. Which one of the following compound is NOT a part of alkaloid class of secondary metabolites? (1) Lignin (2) lndole (3)Tropane (4) Pyrroidine Correct answer: (1) Lignin Lignin is a […]

β-thioglucosidases, also known as myrosinases, are the enzymes that are known to hydrolyse which one of the following plant natural products? (1) Glucosinolates (2) Terpenoids (3) Alkaloids (4) Phenolics Correct […]

Given below are some statements on secondary metabolites in plants. A. Glucosinolates are synthesized by elongation in the length of side chains of their precursor amino acids B. All terpenes […]

Phenyl ammonia Aase (PAL) and chalcone synthase (CHS) involved in biosynthesis of phenolic compound in plants. Following are some statements regarding the action of PAL and CHS: A. Substrate for […]

Given below are the list of plant derived alkaloids and their uses in modern medicine. Alkaloids                     Uses A. Caffeine      […]

Several plants produce metabolites with important medicinal properties and have been extensively used in traditional medicine across the world. Many of these compounds can now be purified or synthesized and […]

26. The plant species which produces both oil and dye (1) Sesamum indicum (2) Conovalia glodicosa (3)Carthamus tinctorius (4) Riccinus cumminis Correct answer: (3) Carthamus tinctorius Explanation: (1) Sesamum indicum (sesame) is […]