Posts

Making Quizlet on The Sterilization and Disinfectants

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This week Dr. Wan gave task to make our own quizlet. In the quizlet, we have to write the term that related to topic of Sterilization and disinfectant. After we done that, we do some game on quizlet, that involve in the group. It really fun and I enjoyed played it. I got a very easygoing and fun groupmate to work on. After that, we also do test with our own quizlet and the mark have been submit in putrablask. Below is my own quizlet, you can check it out and try it if you one.  https://quizlet.com/250462036/sterilization-disinfectants-nurul-husna-flash-cards/ That all for today, thank you and bye :)

TRIP TO INSTITUTE BIOSCIENCE - ELECTRON MICROSCOPE

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This was our trip to Institute Bioscience, above is the picture of my classmate. We was briefing and all the explanation are all about electron microscope. Above are the explanation of Scan electron microscope and Transmission electron microscope. We enjoy ourselves when going there. I hope in future we could go to other place too.

Atmospheric oxygen requirements & Techniques for the Cultivation of Anaerobic Microorganisms

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Hello guys, so this week experiment going to be the techniques for the cultivation of anaerobic  microorganisms and atmospheric oxygen requirements. Microorganisms exhibit great diversity in their ability to use free oxygen for cellular respiration. These variation in Oxygen requirement reflect the differences in biooxidative enzyme systems present in the various species. Microorganisms can be classified into one of five major groups according to their O2 needs. Aerobes Microaerophiles Obligate anaerobes Aerotolerant anaerobes Facultative anaerobes Differentiating the aerobes and anaerobes , samples suspected of containing anaerobes need to be handled carefully and  transported promptly to a lab, where it are typically inoculated onto anaerobic blood agar plates and anaerobic broth, as well as onto MacConkey agar and aerobic blood plate. Growth on aerobic or anaerobic agars will determine oxygen requirements, while comparable growth on both aerobic and anaerobic...

Experiment physical factors : Temperature & pH

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Hi and hello guys, so today experiment we going to do experiment about physical factors which are temperature and pH. All bacteria can be classified into one of three major groups,depending on their temperature requirements. Psychrophiles: Bacteria species that will grow within a temperature range of -5 ° C to 20 ° C  . They will grow within 0 ° C and 5 ° C.  Mesophiles : Bacterial species that will grow within a temperature range of 20 °C to 45 ° C. Thermophiles : Bacterial species that will grow at 3 5 ° C and above. Two group of thermophile that exists. Facultative thermophiles and obligate thermophiles. in 37 ° C in 20 ° C in 4 ° C in 60 ° C pH. Certain organisms can grow at extremes of the pH scale, generalities can be made. The specific range for bacteria is between 4 and 9, with the optimum being 6.5 to 7.5. Fungi prefer an acidic environment, with optimum activities at a pH of 4 to 6. The neutral pH is 7. ...

Protists

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This week microbiology class,we discuss about protists. Dr. Wan told us to sits in pair. To discuss about the concept mind map of protists. To objective of this is that we can be able to understand more clearly this topics. After we discuss the mind map. Dr. Wan go through with us the topics of protists. Most of the protists are unicellular. It lacks the level of tissue organization present in higher eukaryotes. It grow in a wide variety of moist habitats. Chemoorganotropic form play role in recycling nitrogen and phosphorus. Parasitic forms cause disease in humans and domesticated animals. Consist of protozoa and algae. The plant-like algae and the animal-like protozoa. Protozoa brown algae green algae red algae Here I want to share the concept mind map that my patner and I do it.  Thats all I guess. Thank you for reading see you later. :)

Fungi

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Well hello there, so this week class we discuss about topic of fungi. At the first class of the week. we  Well hello there, this week we will discuss about fungi with our senior. In a group we must find fungi that give impact to the ecosystem. Our group choose Crytococcus neoformans  . Cryptococcus neoformans  is an encapsulated  yeast  and an obligate aerobe  that can live in both  plants  and  animals . Its  teleomorph  is  Filobasidiella neoformans , a filamentous  fungus  belonging to the  class   Tremellomycetes . It is often found in  bird  excrement.  Cryptococcus neoformans  is an encapsulated fungal organism and it can cause disease in apparently immunocompetent, as well as immunocompromised, hosts. Cryptococcus neoformans in lung Cryptococcus neoformans C. neoformans  usually infects the lungs or the central nervous system (the brain and spinal co...

EXPERIMENT 12 & 13

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Hello everyone, this week practical we have done the experiment of media for the routine cultivation of bacteria and use of differential, selective and enriched media.  The objective of the experiment is that be able to know the abilities of several the growth of differential bacterial species and the nutritional needs of the bacteria under study.  The purpose of specialized media. The successful cultivation of bacteria requires the use of culture media containing the nutritional and biochemical requirements capable of supporting growth. There is no single medium that can support the growth of all microorganisms. This challenge has been met by the development of a variety of specialised media. For example, the streptococci require media supplementend with blood in order to determine certain properties that are necessary for isolation and species identification. Another example is the thioglycollate medium , which contain thioglycolic acid that removes oxygen fro...