Lecture Two Week One - Introduction (2)

Maddie McIntyre
Flashcards by Maddie McIntyre, updated more than 1 year ago
Maddie McIntyre
Created by Maddie McIntyre almost 4 years ago
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Second hour of Introductory 2-hour lecture from Dr. Joanna MacKichan's BMSC335: Medical Microbiology course at Victoria University in Wellington, New Zealand.

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Question Answer
Define the term 'Taxonomy': Taxonomy: the science of naming and grouping organisms in a manner which reflects their relationship in terms of evolution.
Define the term 'Classification': Classification: the practice of placing organisms into taxonomic groups.
Define the term 'Nomenclature': Nomenclature: Collection of rules and procedures for assigning organisms to taxonomic groups.
Define the term 'Phylogeny': Phylogeny: Evolutionary history of an organism.
Define the term 'Systematics': Systematics: The science concerned with the construction of phylogenies.
What is the primary goal of microbial classification? To assign micro-organisms into groups containing evolutionarily-related organisms.
Name at least three different tools used by early researchers to classify bacteria before DNA: 1. Morphology 2. Differential staining. 3. Motility. 4. Metabolism. 5. Habitat. 6. Pathogenicity.
Name six different Microbial habitats which are uninhabitable to other, higher, organisms: 1. Deep Sea Hydrothermal Vents. 2. Geothermal Springs. 3. Antarctic Sea Ice. 4. Salt Lakes. 5. Oil Spills. 6. Human Mouth
How many cells of bacteria, roughly, are found in the human body? 10^14 to 10^15 (10% of our own weight)
What are the three major categories of Bacterial Morphology? 1. Coccus 2. Bacillus 3. Spirilla
Is cell morphology a good predictor of the other properties of a cell? No, but it is still important in diagnosis.
What shape are cells that have a 'coccus' shape? Spherical or ovoid.
What shape are cells that have a 'bacillus' shape? Cyclindrical or rod-shaped.
What shape are cells that have a 'spirilla' shape? Rods that form spiral shapes.
What morphology are the bacteria in the image above? 8473e1de-e0d4-4000-9134-627df2b37cea.png (image/png) Coccus
What morphology are the bacteria in the image above? 9f9a15b2-0a2f-493e-934f-6ad2d95a0993.png (image/png) Bacillus
What morphology are the bacteria in the image above? 0780fc75-bac2-4143-90aa-166c369de5f5.png (image/png) Spirilla
What are the four primary morphologies of bacterial colonies? 1. Circular. 2. Irregular. 3. Filamentous. 4. Rhizoid.
What is the morphology of the bacterial colony in the image above? fb91e767-ce58-4c58-8694-ac041e983472.png (image/png) Circular.
What is the morphology of the bacterial colony in the image above? 0175fab4-a281-449e-8971-48e6153a18c6.png (image/png) Irregular.
What is the morphology of the bacterial colony in the image above? b1b19565-1b98-40b4-ab41-dc39d0cd1d29.png (image/png) Filamentous.
What is the morphology of the bacterial colony in the image above? 9aeb63cf-b790-4f8c-8c43-2f627b276ec5.png (image/png) Rhizoid.
Give one example of a single-rod (bacillus) bacterium: Mycobacterium tuberculosis. Bacillus anthracis.
Give one example of a coccus bacterium: Neisseria meningitidis. Streptococcus pyogenes. Staphylococcus aureus.
Give one example of a spirilla bacterium: Treponema pallidum. Spirillum minus.
What are the three major lineages of microbial cells? 1. Bacteria. 2. Archaea. 3. Eukarya.
Why was it seen as important to taxonomically organise micro-organisms? If you can put micro-organisms into distinct groups, you can tell what kind of conditions they need to be cultured.
Who developed the original categories for the Taxonomic tree? Swedish botanist Car Linnaeus (1707-1778).
What are the name of the two branches concerned with Prokaryotes? 1. Bacteria. 2. Archaea.
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