The compound shown below:

  

1. is a component of ATP molecule
2. is most commonly found in ori region of DNA
3. can have enzymatic activity
4. may be a component of cell membrane

Subtopic:  Nucleic Acid |
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The zwitterion is shown by: 
 

1. Only A

2. Only B

3. Both A and C

4. A, B and C

Subtopic:  Different Amino Acids |
 88%
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All the following statements about cellulose are
correct, except

1. Cellulose is homopolymer

2. it is the most abundant organic molecule in the
biosphere

3. It is branched polymer of β -glucose

4. It has β 1-4 glycosidic bonds

Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 50%
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Which element is present negligible in human body?

1. O

2. C

3. H

4. Si

Subtopic:  Element Analysis |
 95%
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"Ramachandran plot" is used to confirm the structure of:

1. RNA

2. Proteins

3. Triacylglycerides

4. DNA

Subtopic:  Introduction | Introduction to Proteins |
 69%
From NCERT
NEET - 2019
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Prosthetic groups differ from co-enzymes, in which:

1. they require metal ions for their activity.
2. they (prosthetic groups) are tightly bound to apoenzymes.
3. their association with apoenzymes is transient.
4. they can serve as co-factors in a number of enzyme-catalyzed reactions.
Subtopic:  Enzyme Cofactors |
 81%
From NCERT
NEET - 2019
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Which of the following organic compounds is the main constituent of Lecithin?

1. Arachidonic acid

2. Phospholipid

3. Cholesterol

4. Phosphoprotein

Subtopic:  Lipids | Introduction | Lipids: Glycerolipids, Phospholipids & Glycerol |
 85%
From NCERT
NEET - 2019
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Identify two amino acids that contain sulphur:

1. Asparagine and Glutamine

2. Lysine and arginine

3. Proline and hydroxyproline

4. Cysteine and methionine

Subtopic:  Amino Acids |
 78%
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_______________ are organic compounds that are not directly involved in the normal growth, development, or reproduction of organisms.

(1) essential metabolites

(2) primary metabolites

(3) secondary metabolites

(4) endogenous metabolites

Subtopic:  Primary & Secondary Metabolites |
 83%
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Identify the correct statement regarding the structure of a molecule shown in the given diagram:
   

I. It is an alpha amino acid
II. The configuration shown is called zwitterion
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II

Subtopic:  Amino Acids |
 62%
From NCERT
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