Question 1
1. Draw and label a Trypanosoma cell, clearly indicating the kinetoplast, nucleus, flagellum,
kinetosome, and glycosomes, and explain how each structure supports survival in African hosts.
Introduction
The Trypanosoma cell, a protozoan parasite, is known to infect various hosts, including humans, and
is responsible for diseases like sleeping sickness in sub-Saharan Africa. The cell structure of
Trypanosoma is adapted for survival in the host, enabling the parasite to evade immune responses,
absorb nutrients, and reproduce effectively.
Kinetoplast
The kinetoplast is a specialized part of the mitochondrion that contains mitochondrial DNA. It
is essential for energy production and cellular function in the Trypanosoma parasite.
Role in Survival: The kinetoplast plays a critical role in maintaining the energy levels of the
parasite by ensuring the proper functioning of the mitochondrion. This is vital for the parasite’s
survival, as it helps produce the energy needed to carry out essential processes such as
movement, reproduction, and immune evasion (Cox, 1993). The kinetoplast’s ability to
maintain mitochondrial DNA is crucial in sustaining the high metabolic demands required for
survival in the host.