Question # 1

Enzymes involved in respiration, are found in.

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Chloroplasts

Ribosome

Mitochondria

Nucleus

If protein part of co factor is covalently bond to enzyme, it is called is.

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Co- Enzyme

Prosthetic group

Activator

apoezyme

Covalently bonded non protein part is called.

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Co factor

Activator

Prosthetic group

Co enzyme

Optimum pH for sucrase is

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2.00

4.50

5.50

7.60

Irreversible inhibitors form which bonds active site.

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Hydrogen bonds

Covalent bonds

Ionic bonds

Hydrophobic bond

The activation energy of the reaction is lowered by

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Co enzyme

Enzyme

Product

Substrate

The rate of reaction of enzyme directly depends upon

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Amount of enzyme present at a specific time at unlimited substrate concentration

Nature of substrate

Maximum pH level

Low temperature

The optimum pH of enzyme pepsin is

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2

6.8

7

9

Emil Fisher proposed a lock and key model in

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1990

1880

1890

1800

The specificity of an enzyme is due to its

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Cofactor

Protein nature

Active site

Globular shape

Optimum pH values for enzyme arginase is

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7.60

9.70

8.60

9.52

If non protein part is loosely attached to proteins it is known as.

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Cofactor

Co enzyme

Active site

Holo ezyme

Optimum pH value for enzyme pepsin is.

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4.50

9.00

2.00

5.50

Enzyme lower down the energy of.

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Kinetic

Potential

Activation

Ionic

An activated enzyme made of polypeptide chain and a co-factor is

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Substrate

Co-enzyme

Apoenzyme

Holoenzyme

A little change in phmay leadsto.

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Effects enzyme only in high concentration

Retarder even block enzyme activity

Ionization of substrate

Ionization of active sites of enzyme

Enzyme that are integral part of ribosomes are involved in the synthsis of

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Lipids

Carbohydrates

Proteins

None of these

The optimum pH of enter kinase is

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1.50

3.50

5.50

7.50

If we add more substrate to already occurring enzymatic reaction and it has no effect on the rate of reaction, then what will be be the situation of the following

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Saturation

Denaturation

Composition

Inhibition

Induced fit model was proposed by.

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Emil Fischer

Pasteur

Jenner

Koshland

Co-enzyme is a

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Covalently bonded non-protein part of an enzyme

Loosely bonded non-protein part of an enzyme

Co-factor consists of metal ions

None of these

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