Journal Reflection [ WEEK 12 ]

Wednesday, 20th May 2015

We had our lecture at 8.30 am today~

so the topic that we discussed was Microbial Group. Basically, in this topic we must know the microbial reproduction, the physical and chemical growth requirement for development of microbial community and also the biofilms.

im going write what i jotted down in my notes.

• The microbial growth is based on Size of population and not individual growth.
• The methods of microbial reproduction consists of : Binary Fission, Budding, Fragmentation, Formation of Spores and Sexual Reproduction.
• Water activity and osmotic pressure is one of the physical growth requirement. the scale goes between (0.0-1.0)   The maximum  level is 1.0.
• Xerophilic  is microorganisms that can resist dessication.
• Fungus growth best at log phase (because of the enzymme)
• Other organisms grow optimumly at stationary phase.
• They are two strategies to develop a population which are r strategies and K strategies. To create a stable population, K strategies is used.
• "Autochnotous" is the term used to describe first/native microbe.
• Autogenic Succession is the microorganism that modify the habitat in a way that permits new population to develop.
• Allogenic Succession is the microbial species succesion that occurs because the habitat is altered by environmental factors.
• Climax comunity is rarely  achieved.
• Biofilms is composed of living, reproducing microorganisms such as bacteria that exist as a community.
• Oil &gas form a lot of biofilms

Thursday, 21th May 2015

The class at 9 but most of my classmates went late. So, we started as soon as everyone came.

Dr. Wan began our lecture with her story: her experience having a late class. thats was so scary!

so, today we continued our lecture on Principles of ecology. Dr. shows us a Powtoon video made by Radin on this subtopic. Ecology is the systematic study of organisms and their interaction with the environment.

Interaction occurs in our ecology. There are also negative interaction which are competition, prey and predators and parasitic.

we also discussed on 

• abiotic factors
• Homeostasis
• The flow of energy
• Factors that may affect the stability of the ecosystems and
• The approaches to effective ecosystem management

I think Thats all. Thankyouuu