Question

Which of the polymorphic form of trypanosoma lacks free flagellum?

Answer 1

Answer:

Tryponosoma are flagellate unicellular parasitic organisms. Most of these trypanosomes are heteroxenous in natrure - this means that they require more than one obligatory hosts to complete their life cycle.

Most of these trypanosomes are vector borne parasites - mostly transmitted by blood sucking invertebrates such as mosquitoes, tsetse flies and mites.

Typanosomes belong to the class of kinetoplastida and have six main morphologies that they exist in, namely: 

- Amastigote

- Choanomastigote

- Promastigote

- Opisthomastigote

- Epimastigote 

 

- Trypomastigote

⇒Of all these six morphological forms of trypanosome in their life stages, only the amastigote has no free flagellum. 

hope it help you....

Answer 2

Answer:

Trypanosoma Gambiense is a polymorphic form form of Trypanosoma lacks free flagellum.

Explanation:

A polymorphic type of Trypanosoma called Trypanosoma Gambiense lacks a free flagellum. Trypanosoma gambiense is a parasite that resides in the intestine of the blood-sucking fly Glossina palpalis and in the blood, lymph, lymph nodes, spleen, and cerebrospinal fluid of humans (Tsetse fly).

The microscopic body of Trypanosoma gambiense is thin, elongated, colorless, sickle-shaped, flattened, and tapering at both ends. Compared to the blunt posterior end, the anterior end is more pointed. Its body's width ranges from $1$ to $3$ microns and its length between $15$ and $30$microns. The body's size and shape change depending on the form in which it exists. A thin, elastic, and hard pellicle covers the body. It preserves the body's overall form. Fine fibrils that run the length of the body make up the pellicle. Microtubules are the term for these fibrils. When its flagellum beats, the pellicle is drawn out into an atypical membrane fold to one side.

• The term "undulating membrane" refers to this fold, which is thought to be an adaptive feature for mobility in its viscous habitat (blood, lymph).
• Trypanosoma has a uniflagellate, or one, flagellum. The basal granule, which is located close to the body's posterior end, is where the flagellum develops. The flagellum extends forward and is attached to the body the entire length of the body, indicating the end of the undulating member
• The flagellum becomes free and hangs freely as free flagellum after it reaches the anterior end of the body. The flagellum is similar to that of Euglena structurally.
• African sleeping sickness is brought on by the protozoan parasite Trypanosoma brucei. It has a flagellum that is necessary for movement and viability.