Class 12 biology chapter 10 MCQs (Human Health and Diseases MCQ)
1. Which of the following is NOT caused by unsterilized needles?
a. Elephantiasis
b. AIDS
c. Malaria
d. Hepatitis B
Answer : Elephantiasis
2. Opium derivative is …………..
a. Codeine
b. Caffeine
c. Heroin
d. Psilocybin
Answer : Codeine
3. The stimulant present in tea is ………….
a. tannin
b. cocaine
c. caffeine
d. crack
Answer : Caffeine
4. Which of the following is caused by smoking?
a. Liver cirrhosis
b. Pulmonary tuberculosis
c. Emphysema
d. Malaria
Answer : Pulmonary tuberculosis
5. An antibody is ……………
a. molecule that binds specifically an antigen
b. WBC which invades bacteria
c. secretion of mammalian RBC
d. cellular component of blood
Answer : Molecule that binds specifically an antigen
6. The antiviral proteins released by a virus-infected cell are called …………
a. histamines
b. interferons
c. pyrogens
d. allergens
Answer : Interferons
7. Both B-cells and T-cells are derived from ………………..
a. lymph nodes
b. thymus glands
c. liver
d. stem cells in bone marrow
Answer : Stem cells in bone marrow
8. Which of the following diseases can be contracted by droplet infection?
a. Malaria
b. Chicken pox
c. Pneumonia
d. Rabies
Answer : Malaria
9. Confirmatory test used for detecting HIV infection is ……………..
a. ELISA
b. Western blot
c. Widal test
d. Eastern blot
Answer : ELISA
10. Elephantiasis is caused by …………
a. W. bancrofti
b. P. vivax
c. Bedbug
d. Elephant
Answer : W. bancrofti
11. Innate immunity is provided by ………..
a. phagocytes
b. antibody
c. T- Lymphocytes
d. B- Lymphocytes
Answer : Phagocytes.