Biology Objective #15
About this set
Created by:
teberline on April 20, 2008
Subjects:
edison; biology; objectives; review guide
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24 terms
Terms | Definitions |
|---|---|
 Small molecules | What size molecules move by diffusion? |
| High, Low, With | In diffusion, molecules move from _____ concentration to _____ concentration. This movement is _____ the concentration gradient. |
| Water Molecules | What kind of molecules move by osmosis? |
| High, Low, Selectively Permeable, With | In osmosis, the water molecules move from _____ concentration to _____ concentration through a _____ membrane. This movement is _____ the concentration gradient. |
| Osmosis is the diffusion of water | How are diffusion and osmosis different? |
| Through diffusion | How does oxygen enter the cells of living organisms? |
| Through diffusion | How does carbon dioxide leave the cells of living organisms? |
| No | Do cells use energy to perform osmosis or diffusion? |
| Passive transport | What term is used o describe the movement of molecules without using energy? |
| Avtive transport | What term is used to describe the movement of molecules using energy? |
| Against | Does active trasport move molecules with or against the concentration gradient? |
| Hypotonic | What kind of solution has a higher water concentration than inside the cell? |
| Hypertonic | What kind of solution has a lower water concentration than inside the cell? |
| Isotonic | What kind of solution has a concentration of water equal to that inside the cell? |
| Isotonic | What kind of solution will not cause damge to cells because no osmosis occurs? |
| Hypotonic | What kind of solution will cause an increase in turgor pressure in a plan? |
| Hypertonic | What kind of solution will cause a plant to wilt? |
| Water moved out of the egg | What happened to the egg that was placed in the syrup? |
| In the egg | Was the concentration of water higher in the egg or in the syrup? |
| Hypertonic | What type of solution was the syrup? |
| Water moved into the egg | What happened to the egg that was placed in pure water? |
| In the water | Was the concentration of water higher in the egg or in the water? |
| Hypotonic | What type of solution was the pure water? |
| Yes, Active Transport | In a nerve cell, sodium ions move across the plasma membrane from an area of lower concentration to an area of higher concentration. Does the nerve cell use energy to do this? What type of transport is taking place? |
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