~Fifth day of Lecture~

23^rd September 2014

Today’s lecture we just continue our previous lecture on topic Microscopy. We learnt how to prepare smear and it involves :

1.       Preparing smears

2.       Fixation

3.       Staining

And the function of staining is to preserve internal and external structures there are two types of fixing that are heat fixing and chemical fixing.

And staining, there are three types of staining that are simple staining, differential staining and special staining.

For differential staining there are two types :

1.       Gram-staining

2.       Acid-fast straining

For special straining there are three types :

1.       Negative straining

2.       Endospore straining

3.       Flagella straining

Dr Wan told us that bacteria that can produce endospore only gram-positive bacteria. She also said that Mycobacterium tuberculosis caused TB (batuk kering)

Mycobacterium tuberculosis

Another new bacteria that we have learnt today is Helicobacter pylori that caused gastric and ulsers and it is gram-negative bacteria.

Helicobacter pylori

Another half an hour (maybe) after finish this topic, Dr Wan wanted us to do a mind map on Chapter 3!

In a our own group we did a mind map on chapter Prokaryotes (just half of it) : External structure only. And we finished our lecture on 12p.m. my course mate and I then walking to the food court next to CIMB bank for lunch.

Till we meet again, Bye! XOXO