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micro organisms

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

Bacteria cannot live in very hot or very cold temperatures.

a)

True

b)

False

2.

Plants get their nitrogen from the soil in the form of

a)

Nitrates

b)

Nitrogen dioxide

c)

Nitric acid

3.

Decomposers ................................

a)

Feed on trapped nutrients

b)

Feed on organic matter

c)

release trapped nutrients

d)

release organic matter

4.

All microorganisms are decomposers

a)

True

b)

False

5.

Name the process by which bacteria turns compounds of nitrogen back into atmospheric nitrogen

(a)  

6.

Mode of transmission of Chicken Pox is

a)

Air

b)

Water

c)

Contact

d)

Food

7.

Which among the following insects is vector of the Dengue virus

a)

Female Anopheles Mosquito

b)

Female Aedes Mosquito

c)

House fly

d)

Cockroach

8.

Antibiotics are not useful against viral infections

a)

False

b)

True

9.

Name the organism

a)

Paramecium

b)

Cockroach

c)

Amoeba

d)

Chlamydomonas

10.

Father of modern microbiology

a)

Edward Jenner

b)

Antonie van Leeuwenhoek

c)

Robert Koch

d)

Louis Pasteur

11.

A fungi which is a rich source of protein

a)

Mushroom

b)

Chlamydomonas

c)

Tofu

d)

Aspergillus

12.

Which of the following is not a bacteria

a)

E.Coli

b)

Salmonella

c)

Bacillus Anthracis

d)

Bacteriophage

13.

Identify Me

I may be found as a single cell or as multiple cells.

I have a cell wall and chloroplast ,but i don't have roots,shoots or leaves

a)

Bacteria

b)

Virus

c)

Algae

d)

Fungi

14.

Choose the picture of micro-organisms!

a)
b)
c)
d)
e)
15.

From this picture, we can find its spores in the . . . .

a)

cap

b)

gills

c)

stalk

16.

Bacteria reproduce by . . . .

a)

dividing into two

b)

dividing into many organisms

c)

producing seeds

d)

producing spores

17.

The name of bacteria that help in the process of food digestion in our body is . . . .

a)

Lactobacillus sp.

b)

Mycobacterium

c)

Escherichia coli

d)

Salmonella sp.

18.

To see micro-organisms, we need to use . . . .

a)
b)
c)
d)
19.

These are the examples of micro-organisms :

a)

Bacteria

b)

Rice plant

c)

Amoeba

d)

Butterfly

20.

The best pH for bacteria is?

a)

6 - 8

b)

2 - 5

c)

9 - 12

d)

4 - 10

21.

Which of these is a common symptom of food poisoning

a)

vomiting

b)

coughing

c)

sore throat

d)

aching muscles

22.

Which of these is not a microbe?

a)

yeast

b)

bacteria

c)

virus

d)

mould

23.

Fungi feed on living things, dead or alive. Hence, we say that Fungi needs _________________.

a)

water

b)

food

c)

air

24.

Fungi grows well in _____________ and _____________ places.

a)

warm and dark

b)

warm and bright

c)

cold and dark

d)

cold and bright

25.

Which is the optimum (best) temperature for bacterial growth?

a)

75C

b)

5C

c)

63C

d)

37C

26.

Yeast is used to make...

a)

rolls

b)

pizza crust

c)

cakes

d)

all of the above

27.

______________ helps us digest our food and they produce needed vitamins.

a)

Bacteria

b)

Protozoa

c)

Fungi

d)

Algae

28.

Harmful bacteria produces cheese.

a)

True

b)

False

29.

The smallest microorganism on earth is known as _____________

a)

algae

b)

bacteria

c)

a virus

d)

fungi

30.

Yogurt and cheese can be produced from ___________.

a)

Protozoa

b)

Bacteria

c)

Virus

d)

Algae

31.

Most microorganisms cannot be seen without a...

a)

microscope

b)

telescope

c)

magnifying lens

d)

x-ray machine