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BIOLOGY [1 Mark Question Answer]

Diseases Cause and Control · ICSE STD 9 (ICSE - English Medium). 16 questions.

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[1 Mark Question Answer]

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16 questions · timed · auto-graded

Question 41 Mark
Name the following:
Germ of germ-substance introduced into the body to prevent occurrence of an infectious disease.
Answer
Vaccine
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Question 91 Mark
Write the full form of the following as it occurs in biology:
AIDS
Answer
AIDS: Acquired Immunodeficiency Syndrome
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Question 101 Mark
Define the following:
Allergen
Answer
An antigenic substance capable of producing immediate hypersensitivity allergy is called an allergen.
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Question 111 Mark
Define the following:
Incubation period

Answer
Incubation period refers to the period between exposure to an infection and the appearance of the first symptoms.
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Question 141 Mark
Write very briefly about the following:
Hepatitis A
Answer
It is a viral disease caused by Hepatitis A virus which results in inflammation of the liver. It has an incubation period of 14-45 days. It is mainly transmitted through contaminated food and water.
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Question 151 Mark
Write very briefly about the following
Incubation period
Answer
It is the period between the entry of germs and the appearance of the first symptoms of the disease. Example: Incubation period of pneumonia is 1-3 days.
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Question 161 Mark
Write very briefly about the following:
BCG
Answer
It is a vaccine which is effective against the bacterial disease tuberculosis (TB). It develops immunity to TB. BCG stands for BacillusCalmetteGuerin.
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[1 Mark Question Answer] - BIOLOGY STD 9 Questions - Vidyadip