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Cell Transport

review of cell transport for honors biology

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
Created by: sydneylorenz