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WorksheetsMicroorganisms
Total questions: 26
Worksheet time: 13mins
____________ are microscopic organisms that are not visible to the naked eye and can be seen only using an instrument called a microscope.
Earthworm
Microorganisms
Cockroach
House fly
The study of microorganisms is known as _________.
Entomology
Zoology
Microbiology
Ornithology
A _____________ is an instrument which is used to observe small objects by forming their magnified images with the help of lenses and light.
Spectacles
Glasses
Mobile
Microscope
Microorganisms can be divided into five types.
True
False
Bacteria are ______________ microorganisms
Unicellular
Multicellular
None of these
What is the shape of cocci?
Spherical in shape
Rod-shaped
Spiral in shape
Curved or comma shsped
Bacteria can withstand extreme _____________ temperature?
Very hot
Very cold
Both
None of these
Ameaba, euglena and paramecium are example of__________
Bacteria
Protozoa
Fungi
Algae
Virus
____________ is used in baking industries for making breads
Yeast
Wheat
Barley
Rice
This prosses of converting sugar into alcohol is known as
Fermentation
Preservation
Infection
Nitrogen fixation
Microorganisms are used to__________.
Food industry
Medical science
Agriculture
All of these
medicines which are manufactured by growing specific microorganisms to cure various diseases are called antibiotics.
True
False
Pores in bread formed by bubbles of_______________.
Oxygen
Carbon dioxide
Nitrogen
None of these
_____________ are preparations of weekend or killed disease– causing microorganisms.
Vaccine
Antibiotics
Poison
None of these
The process by which nitrogen in the atmosphere is converted into compounds which can be used by plants is called.
Fermentation
Preservation
Conservation
Nitrogen fixation
This is not root with nodules?
True
False
What cycle is this?
Water cycle
Recycle
Nitrogen cycle
Plant cycle
Disease– causing microorganisms are called ____.
Pathogens
Germs
Infectious agents
All of these
____________ are diseases that cannot be transmitted from one person to another.
Non-communicable disease
Communicable disease
None of these
_______ are diseases that spread from infected persons to healthy ones.
Non-communicable disease
Communicable disease
None of these
Microorganisms are unicellular or______________
Non-cellular
Multicellular
None of these
_____________ is the process where food gets damaged by the growth of microorganisms and becomes inedible for humans.
Food spoilage
Food poisoning
Perishable foods
Preservation of food
Food items which are capable of spoilage are called
Perishable foods
Food poisoning
Food spoilage
None of these
Illness caused due to the consumption of food spoiled by microorganisms is called
Food spoilage
Perishable foods
Food poisoning
The process of preparing food that involves the prevention of the growth of microorganisms so that it can be stored for longer is called ____________.
Food preservation
Food spoilage
Food poisoning
None of these
Malaria is spread by this method
Direct contact
Droplet infection
Untreated wound
Vector
