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Chapter- Microorganisms Friend & Foe

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

Question 1: Penicillin was discovered by

a)

Edward Jenner

b)

Louis Pasteur

c)

Alexander Fleming

d)

Robert Brown

2.

Question 2: Cold, influenza and most cough are caused by ___?

a)

Bacteria

b)

Viruses

c)

Fungi

d)

None of these

3.

Question 3: Antibiotics

a)

kill disease-causing microorganisms

b)

slow down the growth of disease-causing microorganisms

c)

convert sugar into alcohol

d)

speed up the growth of micoorganisms

4.

Question 5: The process of conversion of sugar into alcohol is known as ...

a)

Budding

b)

Fusion

c)

Fermentation

d)

Fixation

5.

Question 6: Consumption of food spoiled by some micro-organisms causes ____.

a)

Food-poisoning

b)

Cancer

c)

Lungs

d)

None of these

6.
Are microorganisms helpful or harmful?
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
7.

A fungus that causes skin disease.

a)

Ring Worm

b)

Salmonella

c)

Yeast

d)

Athletes Foot

8.

Carrier of malaria causing protozoan is

a)

Female Anopheles mosquito

b)

Cockroach

c)

Housefly

d)

Butterfly