Question # 1

Koshland in 1959 proposed the modified form of

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Fluid mosaic model

Induce fit model

Unit membrane model

Reflective index model

The detachable co factor of an enzyme is known as

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Co enzyme

Ap enzyme

Activator

Prosthetic group

Prosthetic group is

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Covalenty bonded non-protein part of an enzyme

Loosely bonded non-proteins part of an enzyme

Co-factor consists of metal ions

None of these

According to Lock and key model , the activate is.

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Soft structure

Flexible structure

Rigid structure

Attractive structure

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

The reversible inhibitors usually constitute

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Strong linkage with enzyme

Weak linkage with enzyme

No Linage with enzyme

medium linkage

The detachable cofactors of an enzyme is known as.

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Prosthetic group

Apo enzyme

Activator

Co enzyme

Irreversible inhibitors form which bonds active site.

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Hydrogen bonds

Covalent bonds

Ionic bonds

Hydrophobic bond

The optimum temperature of human body enzyme is.

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27 ^oC

37^oC

47^oC

57^oC

Enzyme lower down the energy of.

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Kinetic

Potential

Activation

Ionic

If more substrate to an already occurring enzymatic reaction is added more enzyme activity is seen because

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There is probably more substrate present than there is enzyme

There is probably more enzyme available than there is substrate

There is probably more product present than either substrate or enzyme

The enzyme substrate complex is probably failing to from during the reaction

The optimum pH of enter kinase is

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1.50

3.50

5.50

7.50

The raw material for co-enzymes are

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Lipids `

Proteins

Vitamins

None of these

Enzymes involved in respiration, are found in.

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Chloroplasts

Ribosome

Mitochondria

Nucleus

An enzyme is said to be denatured when

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It has no co-factor

It is in a condition of low temperature

Its structure is destroyed

None of these

The optimum pH of enzyme pepsin is

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2

6.8

7

9

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

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Lipids

Carbohydrates

Proteins

None of these

Optimum pH for action of pancreatic lipase is

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3.00

5.00

7.00

9.00

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