Hi students: This week we will be working in a Virtual Lab related to the bacteria and substances that affect their growth. In the following link you will find the new Lab Report Template. It will be presented as an article. Read it and ask me questions if you don´t understand something... LAB REPORT TEMPLATE And here, the link, for the Vrtual Lab. VIRTUAL LAB ON MICROBIOLOGY Finally, in this link you will find information about antibiotics ANTIBIOTICS DESCRIPTIONS Bring an USB device to store the file started during the class, and complete it at home at home, if it´s necessary See you at class!!!
Hi Students: Welcome to the Second Term. This week we will start with some general concepts related to Microbiology. Print the worksheet in the school's copy office and bring it to the classroom. Here it is the power Point Presentation I will use in class to explain the concepts. POWER POINT PRESENTATION ON VIRUSES AND PROKARYOTES Here a general description of this Science area.
Eukaryotic microorganisms possess membrane-bound cell organelles and include fungi and protists, whereas prokaryotic organisms—all of which are microorganisms—are conventionally classified as lacking membrane-bound organelles and include eubacteria and archaebacteria. Microbiologists traditionally relied on culture, staining, and microscopy. However, less than 1% of the microorganisms present in common environments can be cultured in isolation using current means. Microbiologists often rely on molecular biology tools such as DNA sequence based identification.
Viruses have been variably classified as organisms, as they have been considered either as very simple microorganisms or very complex molecules. Prions, never considered as microorganisms, have been investigated by virologists, however, as the clinical effects traced to them were originally presumed due to chronic viral infections, and virologists took search—discovering "infectious proteins".
The existence of microorganisms was predicted many centuries before they were first observed, for example by the Jains in India and by Marcus Terentius Varro in ancient Rome. The first recorded microscope observation was of the fruiting bodies of moulds, by Robert Hooke in 1666, but the Jesuit priest Athanasius Kircher was likely the first to see microbes, which he mentioned observing in milk and putrid material in 1658. Antonie van Leeuwenhoek is considered a father of microbiology as he observed and experimented with microscopic organisms in 1676, using simple microscopes of his own design. Scientific microbiology developed in the 19th century through the work of Louis Pasteur and in medical microbiology Robert Koch.
Watch these videos and take notes in your notebook, to get extra points.
