microbial systematic : bacteria

Assalamualaikum and Good Evening Dr Wan!

This week, we learnt about Microbial Systematic J

I think this is an interesting topic because this topic is the continuous from last semester.

For our first class with Dr Wan in semester 2, she gave us an assignment on group. We have to divide to seven groups.

After a long time not using the PADLET, we have to post our new group members in the padlet.com and choose our topic on Microbial Systematic. The topics are :

       I.            Bacteria

    II.            Archaea

 III.            Fungi

 IV.            Algae

    V.            Protozoa

 VI.            Virus

The first assignment is we had to seat in our group and do the mind map on the topics. As I’m in group 7, so we have to do the topic’s outline.

We use popplet.com to do this mind map. We have to use this apps is because this apps can do collaboration between us. So, it much easier for us to divided our part and do it in our own devices.

As the session is end, Dr Wan want us to present in front of the class for our next lecture.

Next lecture start with group Bacteria from awin, radin, ara, mar, zaf and josey. They present about the Bacteria in very detail way, as all of us just learnt the basic during semester 1.

After the presentation, there is Q&A session. This group can answer all of the questions! Daebakkkk!

Next, we were having our lecture with Dr Wan.

From the lecture, I know that Gram Negative Bacteria is more resistant towards antibiotic. This is because of the special features that they have :

·         Have porine

·         Have lipopolysaccharide at the outer membrane

·         Have bacterlactamase (enzymes that resist to bacterbacterlactamytering in antibody)

We also learnt about the category 1 that is the gram negative bacteria with cell walls. It divided into two that are :

·         Nonphototrophic

·         Phototrophic-oxygenic/anoxygenic

      

      The Helicobacter and Campylobacter, Spirochetes, Chlamydias were the gram negative bacteria that have cell wall and nonphototrophic.

     So that’s all from me. Till we meet again. Thanks J

NEW SEM NEW LECTURER NEW SPIRIT

[WEEK1-WEEK7]

Salam ‘alaik and good morning Dr. Wan !

It have been a long time that I'm not updated my blog  since week 14 last sem. So, today I want to summarized what I've learn for a half of semester with Dr. Seow Chin Chin.

She is a good lecturer!  For the half of the semester, she only teach us two chapters of Microbiology II that are Microbial Taxonomy and Immunology.

As for me,  Microbial Taxonomy is quite easy as we have learnt the three parts of taxonomy that are nomenclature, classification and identification.

We learnt how to name the microbes and established it in a legal way for nomenclature. This is a part of microbial taxonomy in Microbiology I. the basic in Microbiology I, we have detailed  in this semester. We learnt the two type of Bergey’s Manual that is systematic and determinative. We also have to do our first assignment on week 1 that was we have to find the two types of Bergey’s Manual at Sultan Abdul Samad Library and have to have a look on what the contents, we also have to take a picture of the book cover of Bergey’s Manual and submitted it in Edmodo.

Besides, we learnt about classification have three ways that are ; Phenetic, Phylogenetic and Genotypic. We also learnt technique to get a strain of bacteria and how to isolate the DNA. Next for this chapter, we have learnt the technique for determining microbial taxonomy and phylogeny are divided into two that are ; classical characteristic and molecular characteristics.

For the last part of Microbial Taxonomy was identification. In this part we have learnt the identification methods are :

1)      Microscopic examination

2)      Growth and biochemical characteristic

3)      Immunologic test’

4)      Bacteriophage typing

5)      Antibiotic susceptibility test

6)      Molecular methods

For the molecular methods we had learnt in classification, for this part we just learnt about the nucleic acid probes and plasmid fingerprinting.

At the end of this chapter we were having our fabulous Test 1! And Alhamdulillah, I’m satisfied with my result even though it was not as excellent as Radin’s result. J

Next chapter was Immunology. I think this chapter was hard to understand. But Dr Chin Chin had tried her best to make us understand one by one in this chapter.  

In this chapter we learnt the two types of Immunity that were non-specific immunity and specific immunity.

In non-specific immunity it has internal innate immunity and external innate immunity. For the internal innate immunity there were three mechanisms of protection that are physiological barrier, phagocytosis and inflammation.  Besides, for the external innate immunity it prevent penetration of pathogens into tissue such as skin, mucous membranes and normal microbiota.

In  the specific immunity we have humoral immunity and cell-mediated immunity. In the humoral immunity we learnt how antibodies give protection to us, the antigen binding sites will bind to the epitopes to function to give protection through neutralization, agglutination, opsonisation, activation of complement and ADCC. Next, in cell-mediated immunity we learnt the granule exocytosis and Fas pathway in CD8 T cell mechanisms. We also covered the last part of immunology that was DTH reaction.

We were having our quiz on the last lecture with Dr Chin Chin on Immunology! And our group was the first runner up! And for Test 2 on 29^th June is on Immunology. Pray for us to get good a result Dr Wan!

Till we meet again, thankyou! J