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| Question | Answer |
|---|---|
| 5.2 What is the function for the cell and type of tissue Tight Junctions are found in? | -They hold cells together, maintain density, and control passage in space between cells-epithelial tissue (intestines, skin) |
| 5.2 What is the function for the cell and type of tissue Desmosomes are found in? | They connect adjacent cells and act like a rivet (button). Found in Epithelial tissue- horns, nails, skin |
| 5.2 What is the function for the cell and type of tissue Gap Junctions are found in? | Communication and found in muscule and nerve tissue |
| 5.2 What is the function for the cell and type of tissue Plasmodesmata are found in? | Permits the diffusion of water, ions, small molecules, RNA, and proteins between connected cells through ER. Also for communication. Found in plant cells. |
| 5.3 What are 3 terms used to compare solute concentrations? | HYPERTONIC- when a solution has a higher concentration of solute.HYPOTONIC- when a solution has a lower concentration of solute.ISOTONIC- solutions have equal solute concentrations |
| 5.3 In facilitaed diffusion what 2 proteins are involved? | Channel proteins or carrier proteins. They help substances pass or speed up the diffusion. |
| 5.4 What are the differences between Primary Active Transport and Secondary Active Transport? | Primary Active Transport requires teh direct use of the energy-rich milecule of ATP.Secondary Active Transport doesn't use ATP directly; rather, its energy is supplied by an ion concentration gradient established by primary active transport. |
| 5.4 Describe 3 different types of membrane proteins invoved in active transport | UNIPORTS transport one substance in one direction. SYMPORTS transport two different substances in the same direction. ANITPORTS transport two different substances in opposite directions. |
| 5.5 What type of cells use phagocytosis? | Unicellular protists and some white blood cells. |
| 5.5 What is Receptor-Mediated Endocytosis used for? | Its used by animal cells to capture specific macromolecules from teh cell's environmembt. Most mammalian cells use this to take cholesterol from the blood. |
| 5.5 What is exocytosis? | The process in which materials are packaged in vesicles and then secreted from a cell when the vesicle membrane fuses with the plasma membrane. |
| How man molecules are moved by a symport? | 2 different kinds |
| What are the differences between a symport and an antiport? | Symport moves two substances in one direction. Antiport moves two substances in opposite directions. |
| Does active transport move with or against the concentration gradient? | Against |
| What type of port is the sodium-potassium pump? | Antiport |
| How many molecules of potassium in the soduim-potassium pump are moved? | 2 |
| Which way are the sodium molecules in a sodium-potassium pump being pumped? | Out of the cell |
| What helps change the shape of the protein pump in the Na-K Pump? | The ATP |
Created by:
BrookeC
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