EASY
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What is Binary fission in bacteria.

Important Questions on Microorganisms and Disease

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Science>Biology>Microorganisms and Disease>Microorganisms
Classify bacteria on the basis of their shapes.
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_____ have a cell wall and a cell membrane but do not have a well-defined nucleus.
MEDIUM
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“Bacteria suffer from poor public relations.” Justify this statement.
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Science>Biology>Microorganisms and Disease>Microorganisms

Examine the lenses in a compound microscope. Are they convex or concave lenses?

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Science>Biology>Microorganisms and Disease>Microorganisms
Write the scientific name of bread mould. (Rhizopus/ Aspergillus)
MEDIUM
Science>Biology>Microorganisms and Disease>Microorganisms
Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?
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Science>Biology>Microorganisms and Disease>Microorganisms
Cocci are _____ shaped bacteria.
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Science>Biology>Microorganisms and Disease>Microorganisms
What are the major groups of micro-organisms?
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Rod-shaped bacteria are known as _____ (cocci/bacilli/spirilla).
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Science>Biology>Microorganisms and Disease>Microorganisms
We study microbes with the help of a
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Science>Biology>Microorganisms and Disease>Microorganisms
To which category of microorganisms do the following belong?
Amoeba, Lactobacillus, Chlamydomonas, Penicillium, Yeast, HIV
MEDIUM
Science>Biology>Microorganisms and Disease>Microorganisms
Name one animal disease caused by bacteria. (Anthrax/Rabies)
HARD
Science>Biology>Microorganisms and Disease>Microorganisms

Factors responsible for the rapid spread of bread mould on slices of bread are 
(i) A large number of spores.
(ii) Availability of moisture and nutrients in bread.
(iii) Presence of tubular branched hyphae.
(iv) Formation of round shaped sporangia.

MEDIUM
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Write four uses of microbes.
MEDIUM
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What are decomposers and in what way they serve us?
EASY
Science>Biology>Microorganisms and Disease>Microorganisms
Why does bread mould grow profusely on a moist slice of bread but not on a dry slice of bread?
MEDIUM
Science>Biology>Microorganisms and Disease>Microorganisms
Name two diseases caused by Bacteria.
MEDIUM
Science>Biology>Microorganisms and Disease>Microorganisms
What do you understand by septic formation?
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Science>Biology>Microorganisms and Disease>Microorganisms

Fill in the blank with the correct option provided in the bracket.

The bacteria form a hard outer coating called _____ (cyst/plasmid/LPS), which protects them from unfavourable conditions.

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Science>Biology>Microorganisms and Disease>Microorganisms
X and Y are the two types of cells. The cells X have a well-organised nucleus which is separated from the cytoplasm by the nuclear membrane. On the other hand, cells Y do not have a real nucleus, their nuclear material is in direct contact with the cytoplasm. Cell Y can be _____ (Bacterium /Protozoan) cell.