E-Portfolio BMY3201 - Experiment 6

11th October 2017

For Experiment 6, we learned on how to measure microorganism under the microscope. Basically we used an ocular micrometer, a lens with scale from 0 to 100 and stage micrometer, a slide with scale of 0.01 micrometer. The ocular micrometer was put inside one of the ocular lenses before observing. Ii get me took quite some times before I figured out on how to measure the microbes. We measured Staphylococcus aureus, Bacillus cereus and Serratia marcescens. Here are some pictures of the microbes under the oil immersion lens.


This is Serratia marcescens under oil immersion lens
This is Staphylococcus aureus under oil immersion lens

Ulasan

Catat Ulasan

Catatan popular daripada blog ini

E-Portfolio: Microbiology - Week 7

Imej
What is up, people! This week, we learned on internal structure and its function of a prokaryote with Dr. Wan Courtesy: https://www.shmoop.com/biology-cells/prokaryotic-cells.html I am actually quiet interested with plasmid, a small structure, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance. Plasmids have a wide range of lengths, from roughly one thousand DNA base pairs to hundreds of thousands of base pairs. When a bacterium divides, all of the plasmids contained within the cell are copied such that each daughter cell receives a copy of each plasmid. Bacteria can also transfer plasmids to one another through a process called conjugation using sex pili. For our experiment this week, we had done Gram staining and Acid-fast staining.
Baca lagi

E-Portfolio Microbiology II Week 8

Imej
Hello all! How are you guys doing ? So, this week we had learnt something new that happens to be in the branches of Microbial Genetics. As we all know, Microbial Genetics can be separated into several category that includes replication, transcription, translation and recombinant. This week, we learnt more on replication and transcription from Dr Suriana.  Basically,  DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. The replication process relies on the fact that each strand of DNA can serve as a template for duplication. DNA replication initiates at specific points, called origins, where the DNA double helix is unwound. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis. An enzyme
Baca lagi