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Zoology Question 53 – AP-EAMCET 2025

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Parasite that causes african sleeping sickness.

Different parasitic organisms are responsible for causing specific diseases in humans.

Step 1: Understand the Disease✦ Active

The question asks to identify the parasite responsible for African sleeping sickness, also known as African trypanosomiasis.

Step 2: Review Common Parasitic Diseases and their Agents○ Expand

Consider the diseases caused by the parasites listed in the options:

1. **Ascaris:** Causes ascariasis, an intestinal infection by roundworms.

2. **Trypanosoma:** Causes trypanosomiasis, which includes African sleeping sickness (African trypanosomiasis) and Chagas disease (American trypanosomiasis).

3. **Plasmodium:** Causes malaria, a mosquito-borne infectious disease.

4. **Wuchereria:** Causes lymphatic filariasis (elephantiasis), a parasitic disease caused by filarial worms.

💡 Teacher's Secret Hint

It's important to distinguish between different types of parasitic infections and their specific causative agents.

Step 3: Identify the Correct Parasite○ Expand

Based on the review, the genus *Trypanosoma* is directly associated with causing African sleeping sickness.

💡 Teacher's Secret Hint

Remember that *Trypanosoma brucei* is the specific species responsible for African sleeping sickness, transmitted by the tsetse fly.

Step 4: Match with Options○ Expand

Comparing this with the given options, option 2, 'Trypanosoma', is the correct answer.

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