Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

(Type of secondary metabolite)

Column II

(example)

I. Alkaloid

II. Toxin

III. Lectin

IV. Drug

1. Abrin

2. Morphine

3. Vinblastin

4. Concanavalin A

Codes

            I           II         III         IV

1.         1           2           3           4

2.         2           1           4           3

3.         2           1           3           4

4.         1           2           4           3

Subtopic:  Primary & Secondary Metabolites |
 85%
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The number of correct statements amongst the given statements is:

I. Amino acids are substitute methanes.

II. The R group in serine is hydroxyl-methyl.

III. Arachidonic acid has 20 carbon atoms including the carboxyl carbon.

IV. Glycerol is trihydroxypropane.

V. Lecithin is a phospholipid.

 1.  2     

 2.  3

 3.  4   

 4.  5

Subtopic:  Amino Acids | Lipids |
 75%
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Match the following:

(a) Inhibitor of catalytic activity of succinate dehydrogenase (i) Ricin
(b) Possess peptide bonds (ii) Malonate
(c) Cell wall material in fungi (iii) Chitin
(d) Secondary metabolite (iv) Collagen

Choose the correct option from the following:
(a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (iii) (iv) (i) (ii)
3. (ii) (iii) (i) (iv)
4. (ii) (iv) (iii) (i)
Subtopic:  Proteins | Enzyme Inhibition | Primary & Secondary Metabolites | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 89%
From NCERT
NEET - 2020
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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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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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Consider the given two statements:

I:  In competitive enzyme inhibition, the substrate and inhibitor cannot bind to the enzyme at the same time.
II: The inhibitor always has a much higher affinity for the active site than the normal substrate.
 
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
Subtopic:  Enzyme Inhibition |
From NCERT
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Consider the following two statements:

I: Enzyme catalyzed reactions are affected by the change in the temperature and pH.
II:  Change in pH and temperature affects the tertiary structure of proteins.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 75%
From NCERT
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Consider the given two statements:

I: Lipids come under acid insoluble fraction.
II: Lipids are macromolecules.
 
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
Subtopic:  Element Analysis |
 63%
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
Assertion (A): Lipids are macromolecules
Reason (R): They have a molecular weight range of ten thousand Daltons and above.
 In the light of the above statements choose the correct answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Element Analysis |
 52%
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
Assertion (A): Dietary proteins are the source of essential amino acids.
Reason (R): All essential amino acids are aromatic.
In the light of the above statements, choose the correct answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Proteins |
 87%
From NCERT
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