Entamoeba histolytica is a protozoan parasite found in which part of human body?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Large intestine
Option (1) Lungs — Incorrect. The lungs are infected in pneumonia, caused by bacteria such as Streptococcus pneumoniae that fill the alveoli with fluid.
Option (2) Liver — Incorrect. The liver is where the malaria parasite first multiplies after a mosquito bite. NCERT places Entamoeba in the large intestine.
Option (3) Small intestine — Incorrect. The small intestine is the home of intestinal worms such as Ascaris, not of Entamoeba.
Option (4) Large intestine — Correct. Entamoeba histolytica lives in the large intestine and causes amoebic dysentery, with mucus and blood in the stools.
NCERT Extract:
Common Diseases in Humans – …
