Which one out of A-D given below correctly represents the structural formula of the basic amino acid?

1. C

2. D

3. A

4. B

Subtopic:  Different Amino Acids | Introduction to Proteins |
NEET - 2012
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Which one of the following structural formulae of two organic compounds is correctly

identified with its related function?

1. A - triglyceride major - a source of energy

2. A - Lecithin - a component of cell membrane 

3. B - Adenine - forms nucleotides of the nucleic acids

4. Both 2. and 3.

Subtopic:  Double Helix : Watson & Crick Part 1 | Lipids: Glycerolipids, Phospholipids & Glycerol | Double Helix : Watson & Crick |
 56%
From NCERT
NEET - 2011
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Which one of the following pairs is wrongly matched?

1. Detergents - Lipase

2. Alcohol - Nitrogenase

3. Fruit juice - Pectinase

4. Textile - Amylase

Subtopic:  Enzymes Classification |
 68%
NEET - 2009
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Carbohydrates are commonly found as starch in plant storage organs. Which of the

following five properties of starch (A-E) make it useful as a storage material?

(A) Easily translocated 

(B) Chemically non-reactive

(C) Easily digested by animals

(D) Osmotically inactive

(E) Synthesized during photosynthesis

The useful properties are 

1. (B) and (C)

2. (B) and (D)

3. (A), (C) and (E)

4. (A) and (E)

Subtopic:  Carbohydrates |
 52%
NEET - 2008
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Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched

with the category mentioned against it?

1. Thymine, Uracil         - Pyrimidines

2. Uracil, Cytosine         - Pyrimidines

3. Guanine, Adenine      - Purines

4. Adenine, Thymine     - Purines

Subtopic:  Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 80%
From NCERT
NEET - 2008
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A competive inhibitor of succinic dehydrogenase is

1. malonate                 

2. oxaloacetate

3. α-ketoglutarate       

4. malate

Subtopic:  Enzyme Inhibition: Introduction | Enzyme Inhibition |
 86%
From NCERT
NEET - 2008
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An organic substance bound to an enzyme and essential for its activity is called:

1. coenzyme                   

2. holoenzyme

3. apoenzyme                 

4. isoenzyme

Subtopic:  Enzyme Cofactors |
 76%
From NCERT
NEET - 2006
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The enzyme amylase belongs to the class

1. hydrolase                       

2. isomerase

3. transferase                     

4. lyases

Subtopic:  Enzymes Classification |
 66%
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Cobalt is present in the molecule of

1. vitamin B6

2. vitamin B12

3. vitamin B2

4. vitamin B1

 78%
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DNA has deoxyribose as the constituent sugar. The position where the sugar lacks oxygen is

1. 1

2. 2

3. 3

4. 4

Subtopic:  Carbohydrates: Introduction | Carbohydrates: Glycosidic Bond & Disaccharide |
 72%
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