Question # 1

When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction what would you predict?

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All active sites have been occupied by substrate molecules

The enzyme molecules have denatured

More substrate acted as inhibitor

More substrate has disturbed the pH of the medium

The average temperature for human is ...............°C.

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35°C

36°C

37°C

38°C

When an enzyme is no longer able to work, it is said to be:

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Catalyzed

Dead

Cofactored

Denatured

Metabolism is of ............... types.

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1

2

3

4

The optimum temperature for human enzyme is between:

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10-20°C

20-35°C

35-40°C

5-10°C

Non-protein part of enzymes are:

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Inhibitors

Substrate

Cofactors

Coenzymes

Vitamin which acts as co-enzyme is:

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Vitamin A

Vitamin K

Riboflavin

All of these

Which one of the following convert protein to amino acids?

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Protease

Lipase

Both

None

Activation energy is required to:

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Activation enzyme

Start a reaction

Speed up a reaction

None

To waht category of molecules do enzymes belong?

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Carbohydrates

Lipids

Nucleic acids

Proteins

Enzymatic reactions are _______ of times faster than uncatalyzed reactions:

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Millions

Hundreds

Thousands

Billion

Which of the following characters is not true about enzymes?

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Globular in shape

Non-specific

Protein in nature

Highly reactive

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