Passive Transport

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck

Passive transport requires no

• concentration gradients
• osmosis
• motion
• energy

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

The cell below is in a _________ solution.

(Hint: The arrows point to the direction of water movement. The dots represent solutes.)

• Hypotonic

• Hypertonic

• Isotonic

The cell below is in a _____________ solution.

(Hint: The arrows point to the direction of water movement. The dots represent solutes.)

• Hypertonic

• Hypotonic

• Isotonic

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.
  
• The movement of materials through (or across) the cell membrane
  
• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
• The movement of molecules from an area of high concentration (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
  

Tags

NGSS.MS-LS1-2

Osmosis

• diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
• the diffusion of particles from an area of high concentration to an area of low concentration
• diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
• the diffusion of particles from an area of low concentration to an area of high concentration

Tags

NGSS.MS-LS1-1

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

Which way will the water molecules move during osmosis?

• Out of the cell, so the cell shrinks.
• Out of the cell, so the cell swells.
• Into the cell, so the cell shrinks.
• Into the cell, so the cell swells.

Tags

NGSS.HS-LS1-3

Which type of Passive transport uses the help of a transport protein?

• Osmosis

• Facilitated diffusion

• Simple diffusion