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Cell Transport
Review of Active and Passive Transport
| Term | Definition |
|---|---|
| eukaryotic | cells that have a nucleus and membrane bound organelles (mitochondria, chloroplast) |
| prokaryotic | cells that do NOT have a true nucleus or membrane bound organelles |
| DNA, ribosomes, cell membrane,cell wall | prokaryotic |
| type of cellular transport that does not require energy (does not use ATP) | Passive Transport |
| type of cellular transport that does require energy (uses ATP) | Active Transport |
| difference in concentration of a substance across space | Concentration gradient |
| type of cellular transport that moves molecules from low to high concentration | Active Transport |
| cellular energy needed to transport molecules from low to high concentration | ATP |
| Osmosis is a form of ________________ transport | passive |
| When a cell is put in this type of solution, the cell does not change size | Isotonic |
| Diffusion is a form of _______________ transport | passive |
| type of transport that needs a protein to help move particles in and out of the cell | Facilitated diffusion |
| the movement of molecules from high to low concentration | Diffusion (passive transport) |
| the diffusion of water from high to low concentration | Osmosis |
| Facilitated diffusion is a form of __________ tranpsort | passive |
| movement of water in the cell and out of the cell is the same | Isotonic |
| type of cellular transport that moves molecules AGAINST the concentration gradient | Active Transport |
| type of cellular transport that moves molecules from high to low concentration | Passive Transport |
| water concentration is HIGHER INSIDE the cell than outside the cell | Hypertonic |
| cell looses water in this type of solution | Hypertonic |
| cellular energy needed to transport molecules against the concentration gradient | ATP |
| cell gains water and swells and can even burst in this type of solution | Hypotonic |
| What is the appearance of a hypertonic cell? | cell shrinks |
| Isotonic cell | solution that has the same concentration in the cell and outside of the cell |
| water concentration is HIGHER OUTSIDE the cell than inside the cell | Hypotonic |
| What is the appearance of a cell that is hyptonic? | the cell swells |
| type of passive transport that uses a protein to move particles across the membrane | facilitated diffusion |
| type of membrane that allows certain things in the cell and prevents others from entering | selectively permeable |
| biomolecules that make up a cell membrane | lipids, carbohydrates, proteins |
| type of cell that has a cell membrane | ALL CELLS have a cell membrane |
| process of maintaining a stable internal environment | homeostasis |
| cell part responsible for maintaining homeostasis | cell membrane or plasma membrane |
Created by:
erencryer
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