Match List-I with List-II and select the correct answer by using the codes given below:
List-I
List-II
A.
Malaria
1.
Bone marrow
B.
Filaria
2.
Brain
C.
Encephalitis
3.
Muscle
D.
Leukaemia
4.
Lymph node
5.
Blood cells
A B C D
EXPLANATION
Correct Option (b):
A. Malaria is caused by Plasmodium parasites, which primarily infect and multiply within red blood cells.
B. Filaria, caused by filarial worms, affects the lymphatic system, leading to conditions like elephantiasis, with lymph nodes being a primary site of infection.
C. Encephalitis refers to the inflammation of the brain, often due to viral infections.
D. Leukaemia is a cancer of the blood-forming tissues, predominantly the bone marrow, characterized by the overproduction of abnormal white blood cells.
Incorrect Options:
Option 1 (5 3 2 1): This option incorrectly matches Filaria (B) with Muscle (3). Filaria primarily affects the lymphatic system, not muscles.
Option 4 (5 4 1 2): This option incorrectly matches Encephalitis (C) with Bone marrow (1) and Leukaemia (D) with Brain (2). Encephalitis affects the brain, and Leukaemia affects bone marrow.
SOURCENCERT Class 12 Biology Chapter 8: Human Health and Disease