Hello
everyone! Today, I would like to share with you guys what I have
learned with Dr. Wan for the previous week.
For
the first class, Dr. Wan introduced what we are going to learn for
the rest of this semester. We have done the mind map based on the
topics given. The mind map was not difficult to be done because every
member in our group have to do their own part and at the end we
combined all those together.
Tadaaa!
This is the mind map ---> http://popplet.com/app/#/2465933
For
the second class, we learn about BACTERIA. Sounds interesting isn't?
Of course! Who doesn't love bacteria? Haha. [Thanks to the group that
present the topic of bacteria!]
Basically,
gram -ve and gram +ve bacteria are just like I have learned before.
Their composition of cell wall are totally different and we can
differentiate them by Gram Staining. The traits that are used to
classify bacteria include :
- Cell type
- Morphology
- Metabolism
- Reproduction
- Phage typing
- Nucleic acid profile
- Antibiotic resistance profile
Do
you know what is the smallest free-living cell on earth? It is
Mycoplasma. It has colonies with 'fried egg' appearance. It has no
peptidoglycan but strong plasma membrane (due to the presence of
sterols and lipoglycan.
Overall,
there are a lot of new things that I have learned through this class.
Its all about nonphototrophic and phototrophic bacteria, endospore
forming bacteria, regular and irregular nonspore forming gram +ve
bacteria and many more. Microbial world is so diverse! :)
>
C. tetani can cause paralysis
>
C. perfringens can cause gangrene (gas gangrene that clogs
blood vessels, may necessitate amputation)
 |
| Gangrene |
