Cell Movement Worksheet
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28 terms
Terms | Definitions |
|---|---|
 Active transport | the movement of materials through a cell membrane from a low to high concentration using energy |
| Oxygen, calcium, glucose, sodium, hydrogen ions | items that use Active transport to get across the membrane |
| Pinocytosis (endocytosis) | cell engulfs fluid |
| Phagocytosis (endocytosis) | cell engulfs solids |
| because the cell is taking in | Why is pinocytosis not a form of exocytosis? |
| Filtration (exocytosis) | when water molecules leave blood capillaries, it is considered this because molecules are forced from high to low pressure areas (passive transport) |
| Diffusion | movement of a particle from a area of high to low concentration |
| Osmosis | diffusion of water across a semi-permeable membrane |
| Facilitated diffusion | passive transport of materials across a membrane by transport proteins; high to low concentration |
| Passive transport | movement from high to low concentration |
| carbon dioxide or Oxygen | diffusion |
| Water | pinocytosis, osmosis |
| Salt and calcium | Facilitated diffusion (high to low) or active transport depending on concentration (low to high) |
| Glucose | facilitated diffusion, phagocytosis, active transport |
| Urea | exocytosis |
| Protein | transport protein, phagocytosis |
| Nerve Cell | long to enable it to transmit impulses from one body part to another |
| Epithelial Cell | has a sheet formation to help it protect underlying tissues |
| Muscle cells | align with proteins so that they can contract |
| ionic bond | the attraction between oppositely charged ions by transfer of electrons; NA; weak |
| covalent bond | a chemical bond that involves sharing a pair of electrons between atoms in a molecule; glucose; stronger |
| hydrogen bond | weak chemical bond formed by the chemical attraction between molecules that holds water together to create polarity |
| sodium, potassium, chloride, bicarbonate, calcium | 5 examples of electrolytes |
| electrolytes | dissociate in water and form ions |
| hydrogen ions (H+) | what do acids release? |
| release hydroxide ions (OH-) and take in hydrogen (H+) | what do bases release and take in? |
| ionic, covalent | bonds that bond with molecules |
| hydrogen | bonds that bond between molecules |
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