Question

C Fill in the blanks
1.
are omnipresent.
2. Cocci bacteria are
shaped
3
produced
response to antigens.
4. Malaria is caused by
5. The virus which affects bacteria is called
are
in​

Answer 1

1.. Bacteria and Viruses are omnipresent.

Bacteria like Archaebacteria are found in extreme conditions ranging from lagoons to volcanos.

• Acidic & Saline Conditions - Halophiles
• Volcanos: Thermophiles
• Glaciers : Cryophiles

Also, viruses exist in a wide variety of places.

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2. Cocci bacteria are oval shaped.

Vibrio : Spiral shaped

Bacillus : Rod shaped

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3. Antibiotics are produced in response to Antigens.

• Antibodies produced in Humans are Immunoglobulins, namely IgG, IgA, IgM, IgE and igD. (Gamma, Alpha, Mu, Epsilon and Delta)
• An antibody generally has two heavy chains and two light chains. ($\sf H_2L_2$

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4. Malaria is caused by Plasmodium.

Female anopheles mosquito is the vector.

Species of Plasmodium :

• Plasmodium vivax
• P. falciparum
• P. ovale

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5. The viruses which affect bacteria are called Bacteriophages.

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