| Term | Definition |
|---|
| active transport | Pumping of molecules against if concentration gradient with energy ATP |
| Living cells require the uptake of molecules that are scarce the environment | Why is active transport necessary? |
| ATP | What must cells use to transport molecules against their concentration gradient? |
| ion pumps, cotransport, and endocytosis | What are the 3 types of active transport? |
| ion pumps | (electrogenitic pumps) special proteins that actively transport ions resulting in an ionic and voltage gradient |
| cotransport | Coupled passage of two materials across a membrane |
| H+ is pumped out of the cell aganist it's concentration gradient with ATP | What is the 1st process of cotransport? (Material is stuck) |
| H+ travels down it's concentration gradient outside of the cell towards the pump | What is the 2nd process of cotransport? (Material is stuck) |
| H+ reenters the channel and opens a door for the stuck material to pass through the cell | What is the 3rd process of cotransport? (Material is stuck) |
| Protein acts as a pump using ATP, it transports the H+ aganist it's concentration gradient out of the cell | What is the process of the ion pump? |
| endocytosis | Import of material by infolding the plasma membrane |
| phagocytosis, pinocytosis, and receptor-mediated endocytosis | What are the 3 types of endocytosis? |
| phagocytosis | Pseudopod extensions of cilia membrane surround the food items and fuse together forming a vesicle to take the food into the cell |
| pinocytosis | Vesicles of fluid are formed in the cell membrane without the formation of pseudopod |
| receptor-mediated endocytosis | Special coated pits in the cell membrane are lined with reciepter proteins that bind with specific material |
Combine with other sets
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