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Quick test class 8

Total questions: 35

Worksheet time: 17mins

Name
Class
Date
1.

Mushroom is a

a)

protozoa

b)

fungi

c)

algae

d)

plant

2.

The bacteria that turns milk into curd

a)

rhizobium

b)

acetobacter

c)

Lactobacillus

d)

none of the above

3.

Virus reproduce

a)

only outside the cell of the host

b)

only inside the cell of the host

c)

both inside and outside

d)

none of these

4.

The process of conversion of sugar into alcohol is known as

a)

pasteurisation

b)

fermentation

c)

decomposition

d)

none of the above

5.

Atmospheric nitrogen is used for the synthesis of

a)

animal protein

b)

plant protein

c)

carbohydrates

d)

fats

6.

Which of the following is a preservative

a)

sodium benzoate

b)

common salt

c)

acetic acid

d)

all the above

7.

nitrogen is an essential constituent of

a)

protein

b)

chlorophyll

c)

nucleic acid

d)

all the above

8.

a group of microorganism that have the characters of both living and non-living

a)

bacteria

b)

protozoa

c)

virus

d)

fungi

9.

Causative organism of malaria is

a)

virus

b)

protozoa

c)

male anopheles mosquito

d)

female anopheles mosquito

10.

Tuberculosis is caused by ________ and is transmitted by ___________

a)

Bacteria and water

b)

protozoa and water

c)

Bacteria and air

d)

Virus and water

11.

Rhizobium

a)

Helps in digestion

b)

helps in nitrogen fixation

c)

cause disease

d)

all the above

12.

Carrier of malaria-causing organisms is

a)

Female Anopheles mosquito

b)

butterfly

c)

Aedes mosquito

d)

Male Anopheles mosquito

13.

Spirogyra is

a)

Fungi

b)

bacteria

c)

algae

d)

virus

14.

Vaccine for small pox is discovered by

a)

Louis Pasteur

b)

Alexander Fleming

c)

Robert Hook

d)

Edward Jenner

15.

Penicillium is a

a)

Algae

b)

Fungus

c)

Bacteria

d)

Yeast

16.

In order to take precautionary steps to control dengue,we must take measures to stop the breeding of

a)

fleas

b)

Aedes mosquito

c)

fire ants

d)

anopheles mosquito

17.

Which of the following is a communicable disease?

a)

Diabetes

b)

chicken pox

c)

Alzhemier's

d)

cancer

18.

vaccines are made up of

a)

chemicals

b)

viruses

c)

drugs

d)

weak microorganisms

19.

Which of the following diseases can be cured using antibiotics

a)

AIDS

b)

Dengue

c)

Typhoid

d)

Malaria

20.

communicable disease is

a)

caused only by bacteria

b)

caused by microorganisms

c)

spread from person to person

d)

caused only by viruses

21.

Which among the following statement is not associated with food preservation

a)

Prevention from decay or spoilage

b)

decreased shelf life

c)

air-tight sealing

d)

storage for future use

22.

Which one of the following is not produced by the process of fermentation?

a)

Cheese

b)

Milk

c)

yoghurt

d)

wine

23.

citrus canker is caused by a

a)

bacteria

b)

fungi

c)

protozoa

d)

virus

24.

Which of the following microorganisms play an important role in maintaining the balance of nitrogen gas in the atmosphere

a)

Virus

b)

bacteria

c)

fungi

d)

algae

25.

which of the following can effectively prevent the ringworm disease

a)

vaccination

b)

vector control

c)

improving personal hygiene

d)

using antibiotics

26.

Which of the following organisms can perform photosynthesis?

a)

euglena

b)

paramecium

c)

mucor

d)

mushroom

27.

which of the following microorganism exhibit symbiotic life

a)

Lichens

b)

volvox

c)

blue green algae

d)

spirogyra

28.

Bacteria are __________________ organisms

a)

bicellular

b)

multicellular

c)

unicellular

d)

acellular

29.

bacillus are the bacteria that are

a)

comma shaped

b)

rod shaped

c)

curved

d)

spiral

30.

some plant like microorganisms are called

a)

algae

b)

bacteria

c)

both algae and bacteria

d)

protozoa

31.

common cold is caused by _________

a)

bacteria

b)

virus

c)

protozoa

d)

fungi

32.

Which of the disease is caused by fungus

a)

cholera

b)

common cold

c)

ringworm

d)

dengue

33.

antibiotics are effective against

a)

virus

b)

protozoa

c)

bacteria

d)

all the above

34.

Two microorganisms which live in symbiotic association in lichens are

a)

bacteria and fungi

b)

algae and bacteria

c)

algae and fungi

d)

none of the above

35.

fullform of PPP

4 lines