write a brief note on cyst formation in protists the best answer will be marked as brainlist
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✨Protists, especially protozoan parasites, are often exposed to very harsh conditions at various stages in their life cycle.
✨For example, Entamoeba histolytica , a common intestinal parasite that causes dysentery , has to endure the highly acidic environment of the stomach before it reaches the intestine and various unpredictable conditions like desiccation and lack of nutrients while it is outside the host.
✨An encysted form is well suited to survive such extreme conditions, although protozoan cysts are less resistant to adverse conditions compared to bacterial cysts. In addition to survival, the chemical composition of certain protozoan cyst walls may play a role in their dispersal.
✨ The sialyl groups present in the cyst wall of Entamoeba histolytica confer a net negative charge to the cyst which prevents its attachment to the intestinal wall thus causing its elimination in the feces. Other protozoan intestinal parasites like
✨Giardia lamblia and Cryptosporidium also produce cysts as part of their life cycle (see oocyst ). In some protozoans, the unicellular organism multiplies during or after encystment and releases multiple
trophozoites upon excystation.
✨For example, Entamoeba histolytica , a common intestinal parasite that causes dysentery , has to endure the highly acidic environment of the stomach before it reaches the intestine and various unpredictable conditions like desiccation and lack of nutrients while it is outside the host.
✨An encysted form is well suited to survive such extreme conditions, although protozoan cysts are less resistant to adverse conditions compared to bacterial cysts. In addition to survival, the chemical composition of certain protozoan cyst walls may play a role in their dispersal.
✨ The sialyl groups present in the cyst wall of Entamoeba histolytica confer a net negative charge to the cyst which prevents its attachment to the intestinal wall thus causing its elimination in the feces. Other protozoan intestinal parasites like
✨Giardia lamblia and Cryptosporidium also produce cysts as part of their life cycle (see oocyst ). In some protozoans, the unicellular organism multiplies during or after encystment and releases multiple
trophozoites upon excystation.
Nehakalher1:
nice answer
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Write a brif note on cyst fromatio in protists
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