Question

The quadrinucleate cyst stage is an infective stage for humans. Explain.

Answer 1

Entamoeba histolytica:

1. Entamoeba histolytica is a parasitic amoebozoan. It affects humans and causes amoebiasis.
2. Amoebiasis can prove to be fatal if proper care is not done.

Symptoms of Amoebiasis:

1. The symptoms of amoebiasis can range from mild to severe.
2. The symptoms can include stomach pain and cramps, bloody stool, and fever.

Infectious stage of Entamoeba histolytica:

1. Entamoeba histolytica goes through three stages in its life cycle namely, the trophozoite stage, pre-cystic stage, and cystic stage.
2. The quadrinucleate cysts are released through the faeces of the infected person and they can get transferred to another person through sexual contact and also through the indirect oral pathway. This stage is the infective stage in humans.