JOURNAL 3: PROKARYOTES, VIRUSES, PRIONS & VIROIDS

Week 3

Another week with another chapter which are about prokaryotes,viruses,prions and viroids.

Okay, so all of you must have already know what is prokaryotes, right??

Prokaryotes is much more simpler, have no membrane-bound organelles, no nucleus and so on compared to eukaryotes.

But before I continue with this creatures, I just want to tell all of you, we need to thanked all of scientist who had contributed themselves in discovered microorganism such as plant cell and animal cell and also made up the cell theory of life. This is because during the lesson of this chapter, we were watching video of the scientist journey in discovering cell and facing many challenging problems.

For Matthias Jakob Schleiden who had discovered plant cell while Theodore Schwann observed the animal cell, Anton van Leeuwenhoek who had made a microscope and discovered single cell, Robert Hooke who discovered cell while observing a slice of cork. Without them, we won't be able to know the presence of this tiny creatures and use it in applications.

Okay, continue with prokaryotes, this cell was special in different features like presence of cell wall, endospore that favourable to certain environment, and extra chromosomal DNA. Some of them can be a bad guy, some can be the good guy which mean it might be helping in human life.




Picture of prokaryote



So, what the relation between viruses, prions and viroids with prokaryotes???

Actually I do not really know, but what I really know these three 'creatures' are pathogenic to living matters. Prions and viruses are dangerous to human and animal, while viroid is plant pathogen. So, why we should study eventhough prions are pathogen that rarely occur among human??

Atleast if we know this information, might be one day me myself will find the ways to cure the disease. If only. But this can be an additional information since I do not know this kind of organism exist in our life. And I can do the sharing to all of you :)

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