EASY
Earn 100

Explain the chemical pickling method of food preservation.

Important Questions on World of Microbes

MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
Milk is converted into lactic acid by the action of a bacterium named _____.
MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
Our body produces proteins called _____ to destroy germs that enter our body.
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Science>Biology>World of Microbes>Use of Microorganisms
_____ is the one protein molecule produced in the blood by the immune system to fight against disease-causing microbes. (Antibody/ Antigen)
MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
Food should not be purchased beyond the date of _____. (making/expiry)
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Science>Biology>World of Microbes>Use of Microorganisms

Garbage is converted into _____ by micro-organisms.

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Science>Biology>World of Microbes>Use of Microorganisms
_____ (Rhizobium/Nostoc) converts free atmospheric nitrogen into nitrates.
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Science>Biology>World of Microbes>Use of Microorganisms
Food gets decayed mainly due to the _____ (decomposition/reproduction) activities of bacteria, fungi, etc.
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Science>Biology>World of Microbes>Use of Microorganisms
_____ (Nitrogen/Phosphorus) element is fixed by Rhizobium.
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Science>Biology>World of Microbes>Use of Microorganisms
When an antigen enters the body, the body produces proteins called _____ to destroy it.
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Science>Biology>World of Microbes>Use of Microorganisms
The first antibiotic is _____.
EASY
Science>Biology>World of Microbes>Use of Microorganisms
_____ is prepared from a mould called Penicillium.
MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
Exposure to antigens in the body stimulates it to produce _____ ­­­­­.
MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
_____ discovered antibiotics. (Write the full name.)
EASY
Science>Biology>World of Microbes>Use of Microorganisms
_____ break down organic matter and animal waste into ammonia. (Birds/Microbes)
EASY
Science>Biology>World of Microbes>Use of Microorganisms

Fill in the blank with a suitable word.

Aryabhatta microbes  gills hands gravitational 

Fungicides are used to kill _____.

EASY
Science>Biology>World of Microbes>Use of Microorganisms
_____ (Insecticides/ Antibiotics) can kill disease-causing microbes without causing injury to the body.
MEDIUM
Science>Biology>World of Microbes>Use of Microorganisms
Bacteria called _____ fix nitrogen for leguminous plants.(Rhizobium/Pseudomonas)
EASY
Science>Biology>World of Microbes>Use of Microorganisms
_____ are used to make cheese and yoghurt. (Bacteria/Fungi/Virus)
EASY
Science>Biology>World of Microbes>Use of Microorganisms
Fill in the blank with the correct options provided in the bracket.
_____(Rhizobium/Clostridium) bacteria live in the root nodules of leguminous plants.
EASY
Science>Biology>World of Microbes>Use of Microorganisms
The first antibiotic is _____.