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The living state is synonymous with:
1. Cellular organization
2. Metabolism
3. Consciousness
4. Reproduction

Subtopic:  METABOLIC BASIS FOR LIVING (OLD NCERT) |
 81%
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Consider the following two statements regarding enzyme action:

I: Co-factors play a crucial role in the catalytic activity of the enzyme.
II: Catalytic activity is reduced when the co-factor is removed from the enzyme.

Of the above statements:
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 Cofactors |
From NCERT

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Enzymes, vitamins and hormones are common in :
1. Being proteinaceous
2. Being synthesized in the body of organisms
3. Enhancing oxidative metabolism
4. Regulating metabolism

Subtopic:  Enzymes | Introduction |
 65%

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The four elements making 99 % of living system are :
1. CHOS
2. CHOP
3. CHON
4. CNOP

Subtopic:  Introduction |
 90%
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Glycogen is a polymer of :
1. Galactose
2. Glucose
3. Fructose
4. Sucrose

Subtopic:  Carbohydrates: Starch & Glycogen |
 90%
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An enzyme brings about :
1. Decrease in reaction time
2. Increase in reaction time
3. Increase in activation energy
4. Reduction in activation energy

Subtopic:  Enzymes | Enzyme Catalysis |
 89%
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The high energy bonds in an ATP molecule are between :
1. Ribose and nitrogenous base
2. Nitrogenous base and phosphate
3. Ribose and phosphate
4. Phosphate groups

Subtopic:  METABOLIC BASIS FOR LIVING (OLD NCERT) |
 55%

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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%
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The most abundant enzyme is :
1. Carbonic anhydrase
2. Nitrogenase
3. Catalase
4. Rubisco

Subtopic:  Proteins |
 89%
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All of the following are true of protein denaturation except that it
1. is a shape change
2. is always irreversible
3. may be caused by a pH change
4. could result from a temperature change

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 72%

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