Question # 1

The bio-chemical reactions in which large molecules are synthesized is called:

Choose an answer

Anabolism

Catabolism

Metabolism

Enzymatic reaction

Denaturation of enzyme is caused by:

Choose an answer

Increased pH

Decreased pH

Increases in temperature above optimum temperature

Decreases in temperature

What is True about enzymes?

Choose an answer

They make biochemical reactions to proceed spontaneously

They lower the activation energy of a reaction

They are not very specific in their choice of substrates

They are needed in large quantities

Vitamin which acts as co-enzyme is:

Choose an answer

Vitamin A

Vitamin K

Riboflavin

All of these

Non-protein part of enzymes are:

Choose an answer

Inhibitors

Substrate

Cofactors

Coenzymes

Which of the following characters is not true about enzymes?

Choose an answer

Globular in shape

Non-specific

Protein in nature

Highly reactive

Lock and key model was proposed by ................. .

Choose an answer

Emil Fisher

Koshland

Freitz London

None

which enzyme converts lipids into fatty acid and glycerol?

Choose an answer

Lipase

Amylase

Pepsin

Trypsin

Activation energy is required to:

Choose an answer

Activation enzyme

Start a reaction

Speed up a reaction

None

Beriberi can be produced by the lack of ......... .

Choose an answer

Vitamin A

Vitamin B

Vitamin BI

Vitamin C

The enzyme function between a PH of ..................... .

Choose an answer

2 to 4

6 to 8

8 to 10

1 to 2

metabolism is the some of the ................. proesses.

Choose an answer

Chemical

Physical

Both

None

Which of the following variable is least likely to affect an enzymes rate of reaction?

Choose an answer

Temperature

pH

Carbon dioxide concentration

Enzyme concentration

More Classes

Other Links

9th Class Biology Chapter 6 Enzymes English Medium KPK Boards Online Mcqs MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer