Question

1. describe diffusion: • moves things into/out of the cell (circle one or both!) • moves from high - to - low/low - to - high concentration(circle one) • for large/small molecules (circle one or both!) • uses/does not use protein doorway (circle one) 29. describe facilitated diffusion: • moves things into/out of the cell (circle one or both!) • moves from high - to - low/low - to - high concentration (circle one) • for large/small molecules (circle one or both!) • uses/does not use protein doorway (circle one) 30. describe active transport: • moves things into/out of the cell (circle one or both!) • moves from high - to - low/low - to - high concentration (circle one) • for large/small molecules (circle one or both!) • uses/does not use protein doorway (circle one) 31. describe endocytosis: • example of active/passive (circle one) • moves things into/out of the cell (circle one or both!) • for very large/small molecules (circle one or both!) 32. describe exocytosis: • example of active/passive (circle one) • moves things into/out of the cell (circle one or both!) • for very large/small molecules (circle one or both!)

Explanation:

• Diffusion: Moves things into and out of the cell, from high - to - low concentration, for small molecules, does not use protein doorway.
• Osmosis: Moves water into and out of the cell, from high - to - low concentration of water (or low - to - high solute concentration), for water (a small molecule), does not use protein doorway for simple osmosis.
• Facilitated diffusion: Moves things into and out of the cell, from high - to - low concentration, for large or small molecules that need assistance, uses protein doorway.
• Active transport: Moves things into and out of the cell, from low - to - high concentration, for large or small molecules, uses protein doorway and energy.
• Endocytosis: An example of active transport, moves things into the cell, for very large molecules.
• Exocytosis: An example of active transport, moves things out of the cell, for very large molecules.

Answer:

• 27. Moves things into and out of the cell, Moves from high - to - low concentration, For small molecules, Does not use protein doorway
• 28. Moves things into and out of the cell, Moves from high - to - low concentration of water (or low - to - high solute concentration), For small molecules (water), Does not use protein doorway
• 29. Moves things into and out of the cell, Moves from high - to - low concentration, For large or small molecules, Uses protein doorway
• 30. Moves things into and out of the cell, Moves from low - to - high concentration, For large or small molecules, Uses protein doorway
• 31. Example of active, Moves things into the cell, For very large molecules
• 32. Example of active, Moves things out of the cell, For very large molecules