Identify the incorrect pair.
1.
Lectins - Concanavalin A
2.
Drugs - Ricin
3.
Alkaloids - Codeine
4.
Toxin - Abrin
Subtopic: Primary & Secondary Metabolites |
79%
Level 2: 60%+
NEET - 2021
Hints
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 |
81%
Level 1: 80%+
NEET - 2021
Hints
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%
Level 1: 80%+
NEET - 2021
Hints
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%
Level 1: 80%+
NEET - 2021
Hints
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 |
Level 3: 35%-60%
Hints
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 |
81%
Level 1: 80%+
NEET - 2020
Hints
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 |
Subtopic: Proteins |
74%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
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%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
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%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
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%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
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