Match List-I with List-II: List-I List-II a. Amoebiasis i. Human immu…

The correct answer is Option (3) → a-iv, b-iii, c-ii, d-i

(a) Amoebiasis — this matches (iv) Entamoeba histolytica. This protozoan parasite lives in the large intestine and causes amoebic dysentery, with constipation, abdominal pain and stools with excess mucous and blood clots.

(b) Ringworm — this matches (iii) Epidermophyton. Fungi of the genera Microsporum, Trichophyton and Epidermophyton cause ringworm, seen as dry, scaly, itchy lesions on the skin, nails and scalp.

(c) Pneumonia — this matches (ii) Haemophilus influenzae. This bacterium, along with Streptococcus pneumoniae, infects the alveoli of the lungs, which fill with fluid.

(d) AIDS — this matches (i) Human immunodeficiency virus (HIV). HIV is a retrovirus with an RNA genome that destroys helper T-lymphocytes and weakens the immune system.

Item (v) Aedes is left unmatched. Aedes is a mosquito, the vector of dengue and chikungunya, and not the cause of any disease in the list.

NCERT Extract:
Common Diseases in Humans – “… Bacteria like Streptococcus pneumoniae and Haemophilus influenzae are responsible for the disease pneumonia in humans which infects the alveoli (air filled sacs) of the lungs.”
Common Diseases in Humans – “… Entamoeba histolytica is a protozoan parasite in the large intestine of human which causes amoebiasis (amoebic dysentery).”
Common Diseases in Humans – “… Many fungi belonging to the genera Microsporum, Trichophyton and Epidermophyton are responsible for ringworms which is one of the most common infectious diseases in man.”
AIDS – “… AIDS is caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome (Figure 7.6).”