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Q. No.Which of the following are not secondary metabolites in plants?
1. Vinblastin, curcumin
2. Rubber, gums
3. Morphine, codeine
4. Amino acids, glucose
Subtopic: Primary & Secondary Metabolites |
87%
From NCERT
NEET - 2021
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Match List -I with List - II.
| List-I | List-II | ||
| (a) | Protein | I. | C-C double bonds |
| (b) | Unsaturated fatty acid | II. | Phosphodiester bonds |
| (c) | Nucleic acid | III. | Glycosidic bonds |
| (d) | Polysaccharides | IV. | Peptide bonds |
Choose the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | II | I | IV | III |
| 2. | IV | III | I | II |
| 3. | IV | I | II | III |
| 4. | I | IV | III | II |
Subtopic: Nucleic Acid: Nucleotides | Proteins | Carbohydrates | Lipids |
86%
From NCERT
NEET - 2021
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Identify the incorrect pair.
1. Lectins - Concanavalin A
2. Drugs - Ricin
3. Alkaloids - Codeine
4. Toxin - Abrin
Subtopic: Primary & Secondary Metabolites |
79%
From NCERT
NEET - 2021
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Following are the statements with reference to 'lipids'.
| (a) | Lipids having only single bonds are called unsaturated fatty acids. |
| (b) | Lecithin is a phospholipid. |
| (c) | Trihydroxy propane is glycerol. |
| (d) | Palmitic acid has 20 carbon atoms including carboxyl carbon. |
| (e) | Arachidonic acid has 16 carbon atoms. |
You have to choose the correct statements out of the five given above. Choose the correct answer from the options given below:
1. (b) and (c) only
2. (b) and (e) only
3. (a) and (b) only
4. (c) and (d) only
Subtopic: Lipids |
80%
From NCERT
NEET - 2021
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Which of the following is not an example of a secondary metabolite produced in living organisms?
1. Lecithin
2. Alkaloids
3. Flavonoids
4. Antibiotics
Subtopic: Lipids: Fatty Acids | Primary & Secondary Metabolites |
From NCERT
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Match the following:
| Column I | Column II | ||
| (a) | Aquaporin | (i) | Amide |
| (b) | Asparagine | (ii) | Polysaccharide |
| (c) | Abscisic acid | (iii) | Polypeptide |
| (d) | Chitin | (iv) | Carotenoids |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (iii) | (i) | (ii) | (iv) |
Subtopic: Proteins | Carbohydrates |
80%
From NCERT
NEET - 2020
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Identify the incorrect statement:
1. Insulin is a polymer of fructose.
2. Cellulose is a homopolymer
3. Starch is a homopolymer
4. Chitin is nitrogen containing complex polysaccharide
1. Insulin is a polymer of fructose.
2. Cellulose is a homopolymer
3. Starch is a homopolymer
4. Chitin is nitrogen containing complex polysaccharide
Subtopic: Proteins |
73%
From NCERT
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Which of the following organic molecule is not correctly matched with the diagrammatic representation of its structure?
| 1. | Alanine | .svg) |
| 2. | Palmitic acid | \(CH_3 - {(CH_2)}_{14} - COOH\) |
| 3. | Glycerol | .svg) |
| 4. | Adenylic acid | .svg) |
Subtopic: Element Analysis |
76%
From NCERT
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If we compare percentage weight of elements present in Earth’s crust and the Human body, which of the following would be present in the largest percentage in both?
1. Carbon
2. Oxygen
3. Hydrogen
4. Nitrogen
1. Carbon
2. Oxygen
3. Hydrogen
4. Nitrogen
Subtopic: Element Analysis |
70%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Glycerol | Trihydroxy propane |
| 2. | Lecithin | Phospholipid |
| 3. | Glycine | Beta amino acid |
| 4. | Lysine | Basic amino acid |
Subtopic: Amino Acids |
85%
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