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15 Cards in this Set
- Front
- Back
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What are the processes of life?
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Growth
Reproduction Responsiveness Metabolism |
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Eukaryotes
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Larger
Have internal membrane-bound organelles Are complex Include: algae, protozoa, fungi, animals and plants |
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Glycocalyces
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Gelatinous and sticky
Composed of polysaccharides, polypeptides, or both Formation of biofilms adhere cells to one another |
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Prokaryotes
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Lack nucleus
Have simple structure Include bacteria and archae |
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Flagella
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Responsible for movement
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Fimbriae & Pili
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Rodlike proteinaceous extensions
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Fimbriae
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Sticky, bristlelike, used to adhere to one another
Shorter than flagella Responsible for movement |
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Pili
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aka conjugation pili
Mediate transfer of DNA from one cell to |
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Flagella
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Rotation propels bacterium through environment
Rotation clockwise/counterclockwise Move in response to stimulus, which is called taxis |
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Bacterial cell walls
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Provide structure & shape & protect cell from osmotic forces
Composed of peptidoglycan 2 basic types: gram-positive & gram-negative |
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Gram-positive
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Thick and stain purple
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Gram-negative
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Thinner and stain pink
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Cytosol
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Liquid portion of cytoplasm
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Inclusions
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May include reserve deposits of chemicals
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Archael Cell Walls
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Do not have peptidoglycan
Contain polysaccharides & and proteins |
