Biomolecules Quiz 4

Question 1

The enzyme functions best at temperature

Accepted Answer

$20^\circ$C to $35^\circ$C

Answer

$30^\circ$C to $50
^\circ$C

Answer

$15^\circ$C to $25^\circ$C

Answer

$40^\circ$C to $50^\circ$C

Question 2

As temperature changes from $30^\circ$ to $45^\circ$ C, the rate of enzyme activity will

Accepted Answer

first increase and then decrease

Answer

decrease

Answer

increase

Answer

first decrease and then increase

Question 3

Out of the following, which is not a property of enzymes?

Accepted Answer

Used up in reaction

Answer

Specific in nature

Answer

Proteinaceous

Answer

Increased rate of biochemical reaction

Question 4

Majority of cellular enzymes function best at _____ PH.

Accepted Answer

basic

Answer

acidic

Answer

neutral

Answer

strong base

Question 5

The ______ action of enzyme with a substrate is explained by lock and key theory.

Accepted Answer

specific

Answer

relative

Answer

random

Answer

abstract

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