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Cell Transport
review of cell transport for honors biology
Question | Answer |
---|---|
What is the purpose of the cell membrane? | To regulate what comes in and out of the cell and hold cell contents |
What is the name for the model of the cell membrane? | Fluid mosaic model |
What way to molecules move in active transport? | Low concentration to high concentration |
What way to molecules move in passive transport? | High concentration to low concentration |
Which uses ATP, active or passive transport? | Active transport |
Examples of active transport? | Endocytosis and Exocytosis |
Examples of passive transport? | Diffusion, Osmosis, Facilitated Diffusion |
What is the cell membrane made of? | Lipids + Phosphates = Phospholipids and proteins |
What happens when a cell is in a hypertonic solution? | The cell shrinks as water goes out |
What happens when a cell is in a hypotonic solution? | The cell grows as water goes in |
What happens when a cell is in a isotonic solution? | The cell stays the same as water goes equally in and out |
What is facilitated diffusion? | The gated channel in a protein uses hormones to help open the channel so diffusion can occur. |
What does selectively permeable mean? | Only molecules of a certain size and smaller can fit through the membrane. |
What does it mean to go along (down) a concentration gradient? | Go from high concentration to low concentration |
What does it mean to go against(up) a concentration gradient? | Go from low concentration to high concentration |