Question # 1

Covalently bonded non protein part is called.

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Co factor

Activator

Prosthetic group

Co enzyme

Metals is ions are related to.

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Co enzymes

Vitamins

Co factors

Substrate

The active site of an enzyme

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Never changes

Forms no chemical bond with substrate

Determines by its structure the specificity of an enzyme

Looks like a lump projection from the surface of an enzyme

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 raw material for co-enzymes are

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Lipids `

Proteins

Vitamins

None of these

Induced fit model was proposed by.

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Emil Fischer

Pasteur

Jenner

Koshland

Koshland in 1959 proposed the modified form of

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Fluid mosaic model

Induce fit model

Unit membrane model

Reflective index model

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

The reversible inhibitors usually constitute

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Strong linkage with enzyme

Weak linkage with enzyme

No Linage with enzyme

medium linkage

Optimum pH value for enzyme pepsin is.

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4.50

9.00

2.00

5.50

The optimum pH of enter kinase is

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1.50

3.50

5.50

7.50

Co enzymes are closely related to.

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Amino acids

Vitamins

Enzyms

Non protein particles

The optimum pH of catalase is

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6.60

7.60

8.60

9.60

The rate of an enzyme catalyzed reaction

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Is constant under condition

Decreases as substrate concentration increases

Cannot be measured

Can be reduced by inhibitors

The competitive inhibitor of succinic acid is.

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Fumaric acid

Malonic acid

Acetic acid

Citric acid

An activated enzyme with a co enzyme is called.

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Apoenzymes

Activators

Holo enzymes

Co enzymes

The optimum pH of pancreatic Lipase is

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7.00

9.00

6.40

5.20

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

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Activator

Co enzyme

Apo enzyme

Holoenzyme

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