Posts

Showing posts from 2015
Image
Awesome Microbe Carnival Before When Dr Wan tell us about Awesome Microbe Carnival at first I thought this even maybe similar with our previous event.Later on when we know that we have to do 3D model I quite shock because  I have never have heard about it before so I was wonder how to do it and it is hard?. Next, we know that this event involve all microbiology student from year 1 to  Final year.The first meeting that all microbiology student attend is about the  job dividing for each years.For second year,third semester we were asked to do structure of prokaryote. Our group have to do about Nucleoid.I wonder how we should present because there are many people different course,different age that will be present during that day. After I feel relieve when I see the 3d model .I have know about a few software that can do the 3d model and how to it based on software that I try.It is quite valuable knowledge that I get.Hope I can do better 3d model next time. During the carniva
Image
We learn about intracellular structures of prokaryotes as third topic. We are divided into few group for going to an organelle for Awesome Microbe Carnival.This involving making 3D poster which I have never been heard before this but as soon Dr Wan show the example it is quite interesting.For our group we got nucleoid. When learning this topic we were also asked to do a presentation about gas vesicles and lipid inclusions as peer teaching. Lipid inclusions Depends on the size of cell.I wonder how to measure the how big lipid inclusions?Lipid inclusions also known as fat droplet.Lipid inclusions can only be reveal by sudan dyes.The storage material is polymer poly –β-hydroxybutyric acid. from:http://nptel.ac.in/courses/102103015/module2/lec2/images/4.png Gas vacuole Hollow structure made of protein that are membrane bounded.Impermeable to liquid. What I have learn: Lipid inclusions also known as lipid droplet Magnetosome protect cell from hydrogen peroxide acc
Image
The second chapter we learn about cell wall and membrane structure of prokaryote. Flagella is long filamentous appendages that propel bacteria. from: http://i0.wp.com/microbeonline.com/wp-content/uploads/2013/04/flagellar-arrangement-of-bacteria.jpg I wonder if the number and arrangement effect the movement? There are three basic part Filament hook basal body Axial filament are bundles of fibrils that arise at the end of cell beneath the outer sheath.Present in spirochetes group of bacteria What I have learn: Gram negative cell wall have few layer of peptidoglycan Gram positive have teichoic acid. Archaea have pseudomurein 
Image
This is the third semester. We started with the first chapter that is introduction to Prokaryotes. Prokaryotes are organism that lack nucleus or other membrane bound organelles .Prokaryotes only have two domain that are Bacteria and Archaea . Proteobacteria is the largest division of bacteria. We are divided to few group to collect information about each class in proteobacteria. Our group have to do about acidobacteria which a newly devised phylum. They can be found abundant in soil. Most of them are gram negative, resistant to desiccation and sensitive to damage by oxygen species. They live in highly acidic condition. One of the member  Candidatus Chloracidobacterium (Cab.) thermophilum is found in Yellowstone National Park are claim  to have 250000 chlorophyll and live in alkaline microbial mat compare to another members.I wonder how this organism can survive in alkaline condition? from:http://image.wikifoundry.com/image/1/v7aG6X9LOFKFkQxXHvbI0g32999/GW330H240 When collec
Image
1/6/15 Today is the last class of BMY 3102.The class is in Bilik Mesyuarat Fakulti.The class started around 10 am and finished at 12 am.In these class we finish two final chapter and that is Biogeochemical cycles and Aspects in Biotechnology.We also receive information from Dr Wan that our final will be in objective and subjective form.Before this I thought only the chapter being covered by Dr Wan going to be in the final but I am wrong.So I must study smart to get good result in final. Biogeochemical cycles is about recycling nutrient by microbes.The basic Carbon  cycles in enviroment. http://www.microbiologybytes.com/introduction/graphics/Environmental2.gif.pagespeed.ce.nqcX3UGvPH.gif The microbes that involve in carbon fixation usually have carboxysome. Nitrogen cycles have three major process that are nitrification,denitrification and nitrogen fixation. http://cclynchblog.com/wp-content/uploads/2012/07/nitrification.jpg http://geoweb.princeton.edu/research/biocompl
Image
Principles of ecology.This chapter has a lot of definition need to be know. Abiotic factor are non living part of enviroments such as temperature water sunlight wind rocks and soil periodic disturbances https://classconnection.s3.amazonaws.com/665/flashcards/2470665/png/abiotic_factor1362439889644.png Homeostasis is dynamic balance of processes,materials and organisms in the ecosytem and biosphere Microbes also have roles in the ecosystems oxygen producer. Half of oxygen produce by blue-green algae in the ocean.I wonder how this algae can produce oxygen?Does it has same process as in tree? fix nitrogen in the atmosphere into usable form recyclers of dead materials source in food chain contribution to evolution:remove weaker species through infections What I  have learn: -Ecology is the systematci study of organisms and their interactions with enviroment -Example of decomposer is fungi -blue-green algae produce oxygen
Image
Microbial group Microbial group based on size of population. The pH require for most bacteria is pH5-9 The pH require for fungi pH 2-9 One of chemical growth requirement is oxygen.Aerobes must have oxygen.Microaerophiles little oxygen.Facultative anaerobe with or without oxygen I wonder if this microbe such as anaerobes is more dangerous than aerobes and why?.Based on my knowledge there are some procedure in medical that when a person get a wound the doctor will do the drain so that more oxygen can get to the wound. The common product of succesion is Biofilm.Form when certain microorganisms adhere to the surface of some object in amoist enviroment and begin to reproduce.There are two types of biofilm that are simple and complex biofilm. What I have learn: -Microbial growth based on size of population -Most fungi require pH 2-9 -Biofilm have two types complex and simple
Image
Sorry for the late update.Previous week we learn about Protozoa.Protozoa is animal-like protist.Protozoa have unique feature of morphology that are: ectoplasm-semisolid or gelatinous cytoplasm under plasma membrane endoplasm-inside ectoplasm,fluid and granular Pelicle-embedded in ectoplasm. Nucleus-1,2 or more identical nucleus,1 macronucleus and 1 micronuclei. Vacoule- contactile, Phagocytosic and secretory I wonder if these unique features of morphology is absent does it impact protozoan life so badly from the perspective of reproduction, and nutrient. Algae Algae is plant like protist.Algae reproduce sexually and asexually.In sexual reproduction there are isogamy and heterogamy. Isogamy produce gametes that identical in shape,size and motility.There are no male and female. Heterogamy produce two different type of gametes.Male gamete usually small while female gamete is much larger. http://biostudy4u.com/wp-content/uploads/2012/11/algae_reporduction-300x150
8/5/15 We do a quiz about prokaryotes today.This quiz was answered in group.There are only four group that participate in this quiz because there are many student that are absent today so all the student that present is divided into four group.This quiz help me to remember back what I have learn last semester and also applied the knowledge that I have learn on the question that we have not study yet. What I have learn: -Strong enzyme need to degrade envelope -The component of envelope is different for gram negative and positive bacteria and archae. -Chitin responsible for asma in human.
Image
6/5/15 Today we continue learning about Bacteria.The lesson continue from where we end last week. We study about Gram negative bacteria with cell wall.Some of them are non phototrophic which not pathogenic such as Pseudomonas sp. that degrade complex organic molecules in soil.This microbe is important for plant growth.I wonder will the plant able to grow if this microbes are absent? There are also Phototrophic gram negative bacteria with cell wall that are Anoxygenic  and oxygenic.Example of Anoxygenic bacteria is Rhodospirillum that can be found in water and also known as purple non sulphur bacteria.Anoxygenic bacteria do not have chlorophyll but have bacteriachlorophyll Next category is gram positive bacteria with cell walls that contain 6 groups.One of the group is Mycobacteria. Mycobacteria tubercolosis is one of the example.This bacteria become interesting to know more because there are attemps to revive this bacteria from 300 old human mummies due to M. tuberculosis ca
Image
24/4/15 The class started with presentation from group 2 which presenting about bacteria based on the mind map they have made in Wednesday.Each of the member have one minutes to present their topic.all group have to get ready questions to ask about bacteria before they start to present.Group 2 members answer the questions that being ask when they are done with the presentations.After  that we continue to learn about bacteria from the slides. Bacteria is divided into four categories based on their cell wall -gram positive bacteria + cell wall -gram negative bacteria + cell wall -bacteria lacking cell walls -the archaebacteria Gram negative bacteria is most abundance bacteria most of them are pathogenic it  make me wonder does we are surrounded by pathogenic bacteria that make us sick.One of the example is Escherichia coli  which cause  urinary tract infection.The most famous cause of urinary tract infection is not  Escherichia coli but Proteus mirabilis. Proteus mirabilis
22/4/15 Today we learn new topic with Dr Wan that is Microbial Systematic.This topic is about classification of microorganism based on many characteristics such as metabolism, habitats and cell morphology.We going to study more detail about microbial systematic in bacteria,archaea,protozoa,virus,fungi.We were asked to group as six or seven people.We then were asked to do a mind map based on topic choose by us.We decided to choose protozoa.We use popplet to do the mind map so that it is easier many people can do writing on same mind map at the same time.It is my first time using Popplet as a group.By doing this activity I get to know how to use popplet as group. http://popplet.com/app/#/246593 After all group has finish doing the mind map we take a look of the summary of the chapter.We are going to study same topic for bacteria,virus archae,protozoa and fungi.It make me want to know to all of these have all these characteristics.How there are different from each other?Are there are s
Image
The first topic that I learn in BMY 3102 is Nomenclature and classification of microorganism.In this topic I learn about how to correctly write name for microbe.I also learn how the process of naming new bacteria which from my view it is little bit complicated and take a long time to name a new bacteria.When studying about this I have been expose to the Bergey Manual. I also have been exposed about Bergey Manual.Which I have been ask to go library to find it and take picture of it.It has two type that are systematic and determinative. Next, I learn about classification system that are phenetic, phylogenetic and genotypic.Phenetic is about numerical taxonomy which related to dendogram, Phylogenetic is based on phylogenetic tree lastly,genotypic is more to other molecular methods.Under all of these system many methods are used.Some of them combine many methods to classify the microorganism.All these method can be divide under two group that are classical and molecular method.I was