brodidit for students
Immunity and disease
Class 12 · Biology · 8 questions
Name: ____________________ Date: ____________
Antibodies are made by:
- A Platelets
- B Neurons
- C Red blood cells
- D B lymphocytes
Vaccination gives:
- A Temporary relief only
- B Active immunity
- C No immunity
- D Passive immunity only
Mosquitoes spread:
- A Tuberculosis
- B Malaria
- C Cholera
- D Measles
AIDS is caused by:
- A A protozoan
- B A fungus
- C HIV
- D A bacterium
Tuberculosis is caused by:
- A A virus
- B A protozoan
- C A bacterium
- D A fungus
The first line of defence of the body against pathogens is the:
- A Antibodies
- B Skin
- C Vaccines
- D Memory cells
A substance that triggers an immune response is an:
- A Antibody
- B Enzyme
- C Hormone
- D Antigen
Passive immunity can be gained from:
- A A vaccine
- B Exercise
- C Having the disease
- D Mother's milk
Answer key
1. D, 2. B, 3. B, 4. C, 5. C, 6. B, 7. D, 8. D
B cells produce antibodies after meeting an antigen.
The body makes its own antibodies and memory cells.
The Anopheles mosquito carries malaria.
The virus damages helper T cells.
Mycobacterium tuberculosis causes TB.
Skin is a physical barrier.
Antigens are recognised as foreign.
Antibodies are passed from the mother.