LAB MIDTERM REVIEW.docx - Exercise 1 Microscopy Bacteria...

This preview shows page 1 - 2 out of 3 pages.

Exercise 1 Microscopy & Bacteria Calculate magnification, know bacteria shapes-coccus/bacillus/spirillum Domain bacteria defining characteristics- prokaryotic, unicellular, microscopic, biochemically distinct from all else Antibiotics- substances that inhibit the growth of bacteria Autotrophic- produce their own food Decomposer- breaking down & recycling waste products of life Nitrogen fixation- convert nitrogen in air/water to form that can be used for metabolism Pathogen- an organism that causes a disease Symbiosis- “living together” o Parasitism-one organism lives at the expense of the other o Mutualism- both benefit [EX- Anabaena inside Azolla] Crystal violet STAINS the cell wall of the pathogenic bacteria PURPLE Iodine is the MORDENT; it sticks the dye into the cells Alcohol is the DECOLORIZER Safranine is the COUNTER STAIN Gram POSITIVE = Purple = susceptible to Penicillin Gram NEGATIVE = Red = need something other than Penicillin Cyanobacteria (anabaena) green pearls Oscillitoria = green rod Protists = Eukaryotic / Bacteria = Prokaryotic Exercise 2 Taxonomy Binomial- two parted name, scientific name = Genus + specific epithet Common name- Red Oak (scientific name = Quercus macrocarpa ) Genus- group which the organism belongs to Specific epithet- second part of scientific name- not capitalized- macrocarpa Taxonomy- the science of classification(categorizing) and nomenclature(naming) Phylogenetic system- classification that indicates presumed evolutionary ancestors Domain Eukarya- Eukaryotic multicellular/unicellular o Protista = unicellular eukaryotes o Fungi = multicellular eukaryotes – heterotrophic – absorption o
Image of page 1

Subscribe to view the full document.

Image of page 2
  • Spring '16
  • Christina Snaples
  • Biology, Bacteria, multicellular eukaryotes, Parasitism-one organism lives, Domain Eukarya- Eukaryotic, Moss- nonvascular plants

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern