E-Portfolio Microbiology II Week 2

Hello and assalamualaikum everybody!

This would be my first entry for this semester for for subject BMY3102, Microbiology II. This semester we will have three lecturers who will be teaching us which are Dr Wan Zuhainis herself, Dr Suriana and Dr Asilah. We started this week with Dr Wan where we learned about Microbial Systematic of Fungi, Algae and Protozoa

Basically, this topic is about the morphological structures, the nutrition, reproduction and the main classification of these microorganisms. 

Fungi 

The Kingdom Fungi includes some of the most important organisms, both in terms of their ecological and economic roles. By breaking down dead organic material, they continue the cycle of nutrients through ecosystems. In addition, most vascular plants could not grow without the symbiotic fungi, or mycorrhizae, that inhabit their roots and supply essential nutrients. Other fungi provide numerous drugs (such as penicillin and other antibiotics), foods like mushrooms, truffles and morels, and the bubbles in bread, champagne, and beer.


Algae

Most algae live in fresh or sea water where they can either be free-floating (planktonic) or attached to the bottom. Some algae can grow on rocks, soil or vegetation as long as there is enough moisture. A few algae form very close partnerships with fungi to form lichens. All algae contain a pigment called chlorophyll a (other types of chlorophyll such as b, c and / or d may also be present) and they make their own food by photosynthesis. The chlorophyll is contained in the chloroplasts and gives many algae their green appearance. However some algae appear brown, yellow or red because in addition to chlorophylls they have other accessory pigments that camouflage the green colour.

Protozoa
Protozoa are single celled organisms. They come in many different shapes and sizes ranging from an Amoeba which can change its shape to Paramecium with its fixed shape and complex structure. They live in a wide variety of moist habitats including fresh water, marine environments and the soil.
Some are parasitic, which means they live in other plants and animals including humans, where they cause disease. Plasmodium, for example, causes malaria. They are motile and can move by:


  • Cilia - tiny hair like structures that cover the outside of the microbe. They beat in a regular continuous pattern like flexible oars.
  • Flagella - long thread-like structures that extend from the cell surface. The flagella move in a whip-like motion that produces waves that propel the microbe around.
  • Amoeboid movement - the organism moves by sending out pseudopodia, temporary protrusions that fill with cytoplasm that flows from the body of the cell.





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 BMY3101 - Week 5

Imej
This week we were given a group task to choose a prokaryote and to make a presentation about the prokaryote. We had chose Serratia marcescens which is  a motile,short rod-shaped, Gram-negative, facultative anaerobe bacterium, classified as an opportunistic pathogen. It was discovered in 1819 by Bartolomeo Bizio in Padua, Italy. Bizio named the genus Serratia in honor of and Italian physicist named Serratia, and chose marcescens for the species name after the Latin word for decay.   S. marcescens was first thought to be harmless (non-pathogenic). Due to its ability to produce red pigmentation, it was first used in 1906 as a marker in order to trace bacterial activity or transmission. It was not until later in the 1950’s that the US government experimented with the S. marcescens and the harmful effects that the bacteria causes were revealed. A study using S. marcescens was carried out to determine the possibility of biological weapons being transmitted by wind current. ...
Baca lagi
Imej
Assalamualaikum.. Haaaaa.... Apa habaq orang kampungg.. Tudia haa post pertama bagi tahun 2016  Ok, so harini nak share apa yang saya ada belajar tadi dalam masa kurang satu jam tadi bagi subjek AHP2402, Feed Tech So, for today I've learnt about the Characteristics and Nutrient Content of Feedstuffs. These are some synopsis of the things I learnt. Ok, so feedstuffs can be categorized into two categories which is Concentrates and Roughages Concentrates - includes the high energy, low fiber stuffs like grains, oil meals, molasses and dried product. Roughages - includes the high fiber, low energy with lower palatability like hay, staws, silages etc. From these two things, they can be divided into 8 different categories which are, Code Class Description  1 Dry forages and roughages Hay; straw; fodder (aerial part); stover (aerial part without ears, without husks or aerial part without heads); other products with more than 18 percent crude fibre (dry basis...
Baca lagi