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transport
| Question | Answer |
|---|---|
| whats a membrane | double layer of phospholipids and proteins forming a boundary |
| diffusion | movement from high conc to low conc (Passive process) |
| whats a passive process | needs no external energy to happen |
| biological example of diffusion | high conc of co2 into leaf and 02 diffusing out of leaf)(High conc of 02 into blood and C02 diffusing into blood) |
| Osmosis | movement of water from high water concentration to low water concentration |
| what is active transport | movement of molecules with a low conc to a high conc with use of energy |
| whats turgor pressure | pressure being put on cell wall by swelled vacuole and cytoplasm |
| how is osmosis used in preservation | if a food sample was kept in a sugary or salty solution any bacteria or fungi will lose water and it will shrivel up and die. |