NEET 2023 Phase 2 · BiologyCell compositionPrevious Year Question
Which of the following is not a secondary metabolite?
Answer: (B) Lecithin. Answer: (B) Lecithin.
- A.Anthocyanin
- B.Lecithin✓
- C.Curcumin
- D.Morphine
Correct Answer
(B) Lecithin
Solution & Explanation
Answer: (B) Lecithin. Solution: Lecithin is a phospholipid (a primary-metabolite lipid of cell membranes), not a secondary metabolite. Anthocyanin is a pigment, curcumin is a drug, and morphine is an alkaloid, all of which appear among the listed secondary metabolites, so lecithin is the odd one out. NCERT Reference: Ch 9, p.106, line ~28 — "These are phospholipids. They are found in cell membrane. Lecithin is one example."
🎯
43,000+ questions in हिंदी & English · one-tap toggle
Open →📚Practice all NEET Biology PYQs chapter-wise →💡Don't get it? Learn the Biomolecules concepts →Practice NEET 2023 Phase 2 Biology — free, with instant solutions
The app builds a daily goal from your weak topics and brings each question back just before you forget it — so what you solve today turns into marks on exam day.
More NEET PYQ solutions
BiolIdentify the correct statements about biomolecules. A. Lipids are generally water soluble. B. Proteins are polypeptides. C. Polysaccharides are long chains of sugars. D. Adenine and guanine are substituted pyrimidines. E. Almost all enzymes are proteins. Choose the correct answer from the options given below:BiolMatch List I with List II : List I A. Trypsin B. Morphine C. Concanavalin A D. Collagen List II I. Intercellular ground substance II. Lectin III. Enzyme IV. Alkaloid Choose the correct answer from the options given below :BiolMatch List-I with List-II. List-I: (A) Terpenoides (B) Lectins (C) Alkaloids (D) Toxins List-II: (I) Codeine (II) Diterpenes (III) Ricin (IV) Concanavalin A Choose the correct answer from the options given below:BiolIdentify the incorrect pair.BiolWhich of the following are not secondary metabolites in plants?BiolWhich one of the following is the most abundant protein in the animals?BiolSecondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their:BiolMatch the following: (a) Inhibitor of catalytic activity (b) Possess peptide bonds (c) Cell wall material in fungi (d) Secondary metabolite (i) Ricin (ii) Malonate (iii) Chitin (iv) Collagen Choose the correct option from the following: