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Lesson four
| Question | Answer |
|---|---|
| Selectively permeable | a property of cell membranes that allows some substances to pass through, while others cannot |
| passive transport | the movement of materials through a cell membrane without using energy |
| diffusion | the process by which molecules move from an area of higher concentration to an area of lower concentration |
| osmosis | the diffusion of water molecules through a selectivity permeable membrane |
| active transport | the movement of materials through a cell membrane, using cellular energy |
| Endocytosis | a vital cellular process where a cell engulfs substances like nutrients, fluids, or pathogens from its external environment by wrapping its plasma membrane |
| exocytosis | the cellular process of transporting substances out of the cell by enclosing them in a membrane-bound vesicle that moves to the cell membrane, |
| How material move in and out of cell | it is a fusion that allows them to move in and out of the cell |
| different types of membrane transport, and how each works | Cell membrane transport involves moving substances passively . Key types include Simple Diffusion Facilitated DiffusionOsmosis Active Transport , and Vesicular Transport |
| The difference between endocytosis and exocytosis | endocytosis is intake/import, and exocytosis is export/secretion, differing primarily in direction and purpose. |
| Difference between facilitation diffusion and diffusion | The diffusion is a main method by which small molecules move across the membrane and facilitation diffusion is a type of passive transport that moves substances across a cell membrane |
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