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Definition
| Metal with non metal forming postively charged metallic ion and negatively charged non metallic. Held together by ionic bonds. |
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Definition
| Sharing electrons between two non metals |
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Definition
| a lot of oxygen, negatively charged (likes water) (-OH's) |
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Definition
| No charge, no oxygen (C-H's) |
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Definition
| Molecules come together as one |
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Definition
| splitting of water molcules (separation) |
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Definition
- eukaryotic
- cell membrane
- cellulose
- organelles |
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Definition
- eurkaryotic
- cell membrane
- chitin
- organelles |
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Definition
- prokaryotic
- cell membrane
- most have cell walls
- no organelles |
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Definition
| allows Na+ to be pushed down channel protein (passive transport) |
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Definition
| Uses ATP to push Na+ against it's concentration gradient throught the Na+K+ pump; membrane protein |
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Definition
| diffusion of water through a memebrane |
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Definition
| activated by change og voltage across the membrane |
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Definition
| activated by neurotransmitters |
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Term
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Definition
releases energy (hydrolysis)
catabolic pathways: break molecules down into simpler compounds |
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Definition
require energy (condensation)
Anabolic pathway: comsume energy to build complicated compounds |
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Term
| Enzyme & role in reactions |
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Definition
Enzyme is a macromolecule that speed up reactions
Reactions: bring reactants together |
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Definition
| higher levels of concentrations inside of the cell (water will rush outside) causing cell to shreivele up. |
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Definition
| higher levels of concentration outside of cell (water will rush inside of cell) causing the cell to lyse or swell up. |
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Definition
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Term
| Firing and recovery of cells |
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Definition
Channel protein: don't require ATP and can slide down the channel
Sodium Potassium Pump: need ATP to push sodium against it's concentration gradient, letting a little potassium in.
* it will be more negative inside then out. |
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Term
| Processes that impact cellular levels |
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Definition
Increase acetyolcholine: rapid firing
Block Sodium K+ pump: prevent formation of concentration gradient
Drug inhibiting acetyolcholine: nothing to stimulate neron
Myelin Sheath: if it breaks Na+ will diffuse out, lower concen. gradient |
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Term
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Definition
| uses molecules outside of cell |
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Definition
inside of cell
-phagocytosis: engulfment of material
- pinocytosis: engulfment of liquid |
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Definition
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Definition
- polar
hydrogen bonds: really important
- H-bonds are strong but weaker than covalent bonds
- takes on hexagonal crystal structure when frozen. less dense ice and water expands as it freezes
- high melting and boiling points
- stores energy as heat
-surface tension
-caprillary action |
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