Which of the following is not a secondary metabolite?

1. Antibiotics

2. Vitamins

3. Carotenoids

4. Morphine

Subtopic:  Element Analysis |
 72%
From NCERT
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Which of the following elements is present in higher proportion [% weight of the total] in Earth's crust with respect to the average composition of a human body?

1. Carbon

2. Nitrogen

3. Sulfur

4. Magnesium

Subtopic:  Introduction |
From NCERT
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A glycosidic bond connects:

(1) two monosaccharides

(2) two amino acids

(3) two fatty acids

(4) a fatty acid and a glycerol  

Subtopic:  Carbohydrates: Glycosidic Bond & Disaccharide |
 85%
From NCERT
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The Km value of an enzyme denotes the substrate concentration at which the enzyme catalyzed reaction:

1.  Reaches Vmax

2.  Shows decline in the rate of reaction

3.  Attains ½ Vmax

4.  Finally stops

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 91%
From NCERT
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The “primary structure” of a protein refers to:

1. coiling due to hydrogen bonding between amino acids

2. the alpha helix or pleated sheets

3. the side groups of the amino acids

4. the number and sequence of amino acids

Subtopic:  Proteins |
 77%
From NCERT
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C’ represents carbon of

1.sugar of nucleotides

2.Nitrogenous bases of nucleotides

3.Both 1 and 2

4.None of the above

Subtopic:  Nucleic Acid: Nucleotides |
From NCERT
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In proteins, amino acids are linked by  a type of

1.Acetyl bond

2.Amide bond

3.Ester bond

4.Glycosidic bond

Subtopic:  Zwitter ion & Peptide Bond |
 71%
From NCERT
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The formation of amide bond shows which type of reaction

1.Substitution reaction

2.Elimination reaction

3.Addition reaction

4.Rearrangement reaction

Subtopic:  Introduction to Proteins | Zwitter ion & Peptide Bond |
 73%
From NCERT
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Which of the following is true about compounds present in acid soluble pool?

1.They have molecular weight ranging from 18 to 800 Daltons

2.They are called as micromolecules

3.They are called as Biomolecules

4.All of the above

Subtopic:  Element Analysis |
 95%
From NCERT
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Which of the following is true about compounds present in acid insoluble pool?

1.They have molecular weight ranging from 10,000 Daltons and above except lipids

2.They are called as Macromolecules

3.They are called as Biomacromolecules

4.All of the above

Subtopic:  Element Analysis |
 93%
From NCERT
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