C&M Bio Intro Lecture

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  • Created by: LucyLaa
  • Created on: 13-10-18 18:21
Name 1 contributor to cell theory
Robert Hooke, Van Leeuwenhoek, M. Schleiden, T. Schwann, Rudolph Virchow
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What are the three basic principles of cell theory?
All organisms consist of one or more cells; the cell is the basic structural unit of all organisms; the activity of the organism depends on the total activity of independent cells
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Who first observed the nucleus?
Robert Brown/ Franz Bauer
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In Gram Positive staining, what is stained well?
Peptidoglycan layer
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Name one way in which bacteria infects animal cells
Actin pedestals; membrane ruffling; lysosome evasion; cell cycle arrest; basal invasion; actin rocketing
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What is the reductionist approach?
Understanding complex things by reducing them to more fundamental things
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Why is microscopy so important in cell biology?
Good for visualisation --> gets you to ask questions about data
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What protein fluoresces and is often attached to proteins or antibodies?
Green Fluorescent Protein (GFP)
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What is osmium tetroxide?
A compound found in the resin used for "fixing"
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What is one of the negatives of fixation?
Artefacts can be present
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What are the main features of prokaryotes and eukaryotes?
Prokaryotes have a cell wall, no nucleus, often have flagella and no membrane-bound organelles. Eukaryotes have a cell membrane only, a nucleus, membrane-bound organelles, and sometimes flagella.
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What are the three basic principles of cell theory?

Back

All organisms consist of one or more cells; the cell is the basic structural unit of all organisms; the activity of the organism depends on the total activity of independent cells

Card 3

Front

Who first observed the nucleus?

Back

Preview of the front of card 3

Card 4

Front

In Gram Positive staining, what is stained well?

Back

Preview of the front of card 4

Card 5

Front

Name one way in which bacteria infects animal cells

Back

Preview of the front of card 5
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