The two functional groups characteristic of sugars are
1. Hydroxyl and methyl
2. Carbonyl and methyl
3. Carbonyl and phosphate
4. Carbonyl and hydroxyl
Subtopic:  Carbohydrates: Introduction |
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Which one of the following statements is correct, with reference to enzymes?

(1) Apoenzyme = Holoenzyme + Coenzyme

(2) Holoenzyme = Apoenzyme + Coenzyme

(3) Coenzyme = Apoenzyme + Holoenzyme

(4) Holoenzyme = Coenzyme + Cofactor

Subtopic:  Enzyme Cofactors |
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Which of the following is not a polymeric substance?

(1) Nucleic acid               

(2) Proteins

(3) Polysaccharides           

(4) Lipids

Subtopic:  Introduction |
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Which one of the following statements is correct with reference to enzymes?

1. Holoenzyme= Apoenzyme+Coenzyme

2. Coenzyme= Apoenzyme+Holoenzyme

3. Holoenzyme= Coenzyme+ CO-factor

4. Apoenzyme=Holoenzyme+Coenzyme

Subtopic:  Enzymes Classification |
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A non-proteinaceous enzyme is

(1) lysozyme           

(2) ribozyme

(3) ligase               

(4) deoxyribonuclease

Subtopic:  Enzyme Introduction |
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Which of the following is the least likely to be involved in stabilising the three-dimensional folding of most proteins?

(1) Hydrogen bonds

(2) Electrostatic interaction

(3) Hydrophobic interaction

(4) Ester bonds

 

Subtopic:  Structural Organisation of Proteins |
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Which of the following describes the graph correctly?

(1) Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme

(2) Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme

(3) Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme

(4) Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme

 

Subtopic:  Mechanism of Enzymes |
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Which one of the following statements is wrong?

(1) Cellulose is a polysachharide

(2) Uracil is a pyrimidine

(3) Glycine is a sulphur containing amino acid

(4) Sucrose is a diasaccharide

Subtopic:  Different Amino Acids |
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A typical fat molecule is made up of

(1) One glycerol and three fatty acid molecules

(2) One glycerol and one fatty acid molecule

(3) Three glycerol and three fatty acid molecules

(4) Three glycerol molecules and one fatty acid molecule

Subtopic:  Lipids: Fatty Acids |
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Which of the following describes the given graph correctly? 
       516391

1.  Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
2.  Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme
3.  Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme
4.  Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme

Subtopic:  Mechanism of Enzymes |
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