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MOLB Chapter 4
Characteristics of Prokaryotes/Eukaryotes
| Term | Definition |
|---|---|
| monotrichous | one polar flagella |
| amphitrichous | single flagella at each pole |
| lophotrichous | tuft of flagella at one pole |
| peritrichous | flagella surrounding the organism |
| cell wall of gram positive bacteria | one membrane, thick peptidoglycan |
| cell wall of gram negative bacteria | two membranes, thin peptidoglycan |
| structure of plasma membrane | phospholipid bilayer, peripheral protein, integral protein, transmembrane protein |
| simple diffusion | down concentration gradient |
| facilitated diffusion | uses proteins to enter cell |
| osmosis | diffusion of water to a higher concentration |
| osmotic pressure | amount of pressure needed to stop movement across the membrane |
| endospores | resting cells that are resistant to desiccation, heat, and chemicals |
| sporulation | formation of endospores |
| germination | return to vegetative state |
| Glycocalyx | capsule/slime layer of polysaccharide outside the cell wall, |
| prokaryote cell wall | prevent osmotic lysis, peptidoglycan |
| eukaryotic cell wall | made of carbs, chitin, cellulose |
| endosymbiotic theory | mitochondria/chloroplasts were once bacteria that were engulfed by a eukaryotic cell, own membrane, ribosomes, own circular DNA, can reproduce independent of the rest of the cell, |