Question # 1

Enzyme lower down the energy of.

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Kinetic

Potential

Activation

Ionic

Optimum pH values for enzyme arginase is

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7.60

9.70

8.60

9.52

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

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

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

The competitive inhibitor of succinic acid is.

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Fumaric acid

Malonic acid

Acetic acid

Citric acid

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 raw material for co-enzymes are

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Lipids `

Proteins

Vitamins

None of these

The optimum pH of enter kinase is

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1.50

3.50

5.50

7.50

The inhibitor which may destroy the Globular structure of enzyme is.

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Competitive

Non competitive

Reversible

Irreversible

Optimum pH for action of pancreatic lipase is

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3.00

5.00

7.00

9.00

Competitive inhibitors

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Destroy the structure of enzyme

Resemble structurally with substrate

Do occupy active site

Both b and c are correct

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 enzyme with optimum pH = 7.60 is

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Arginase

Enterokinase

Catalase

Sucrase

Optimum pH for sucrase is

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2.00

4.50

5.50

7.60

Poisons, like cyanide are examples of.

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Enzymes

Co enzymes

Inhibitors

Co factors

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

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Lipids

Carbohydrates

Proteins

None of these

Co enzymes are closely related to.

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Amino acids

Vitamins

Enzyms

Non protein particles

The specificity of an enzyme is due to its

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Cofactor

Protein nature

Active site

Globular shape

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

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Active site

Passive site

Intermediate

Above all

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

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Cofactor

Co enzyme

Active site

Holo ezyme

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