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1
The comma shaped bacteria are called _________________.
cocci
Spirochete
Vibrio
bacilli
2
Microorganisms are placed under _____________________
Bacteria
Viruses
Protozoa
All of the above
3
You will probably find bacteria in _______________________.
Decaying Animal
Kitchen sink
Your Intestines
All of these places
4
_____________ bacteria responsible for the curdling of milk.
Lactobacillus
Coli
Rhizobium
Plasmodium
5
How can we see microorganisms?
With naked eye
With microscope
with telescope
none of these
6
Bacteria play many important roles in the biosphere and human society. One of these roles is to _________________
Decompose the bodies of dead organisms.
Assits with digestion in animal bodies.
Make nitrogen available to plants.
7
Which of the following are not microorganisms?
Algae
Virus
Ants
8
Bacteria can be seen only
in light
in darkness
under a microscope
under a magnifying glass
9
Which of the following oranisms perform photosynthesis?
Mushroom
Amoeba
10
Which of the following organisms are not a microorganisms?
Fungus
Anopheles
11
Which of the following are correct :
(a) The study of microorganism is called microbiology.
(b) A thin sheet of glass called a microscopic slide is used to hold a small sample of the specimen.
Only (a) is correct.
Only (b) is correct.
Both (a) and (b) are correct.
None of these.
12
(a) Extremely tiny organisms known as microorganisms can be seen with the help of an instrument called microscope.
(b) A microscope is an instrument that magnifies smaller objects with the help of lenses. It is also known as a compound microscope.
13
Which kind of bacteria is called 'cocci'?
Round shaped
Rod shaped
Comma shaped
Spiral shaped
14
The number of lenses in compound light microscope is ____________________>
15
(a) Rhizobium bacteria change the nitrogen present in air into nitrate.
(b) Escherichia coli bacteria are present in the intestines of humans.
(c) A bacterium called Lactobacillus, present in the spoonful of curd added to the milk.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
All of these.