Question # 1

The catalytic activity of an enzyme is restricted to its small protein called

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Active site

Passive site

Intermediate

Above all

Lock and key model was proposed by

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Koshland

Emil Fisher

Watson

Flemming

The optimum temperature of human body enzyme is.

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27 ^oC

37^oC

47^oC

57^oC

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 reversible inhibitors usually constitute

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Strong linkage with enzyme

Weak linkage with enzyme

No Linage with enzyme

medium linkage

the vitamins are essential raw material for the synthesis of.

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Activators

Co factors

Co enzymes

Prosthetic group

Optimum pH value for enzyme pepsin is.

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4.50

9.00

2.00

5.50

Three dimensional globular protein is.

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Starch

Glucose

Enzyme

Antibiotic

The optimum pH of pancreatic Lipase is

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7.00

9.00

6.40

5.20

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

The activation energy of the reaction is lowered by

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Co enzyme

Enzyme

Product

Substrate

The competitive inhibitor of succinic acid is.

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Fumaric acid

Malonic acid

Acetic acid

Citric acid

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

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Cofactor

Co enzyme

Active site

Holo ezyme

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

An enzyme with its co enzyme or prosthetic removed is designated as

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Activator

Co enzyme

Apo enzyme

Holoenzyme

An activated enzyme with a co enzyme is called.

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Apoenzymes

Activators

Holo enzymes

Co enzymes

Enzyme lower down the energy of.

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Kinetic

Potential

Activation

Ionic

Enzymes involved in respiration, are found in.

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Chloroplasts

Ribosome

Mitochondria

Nucleus

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

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

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Substrate

Co-enzyme

Apoenzyme

Holoenzyme

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Biology Fsc Part 1 Chapter 3 Online Test MCQs With Answers

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