Transport

Exocytosis

• Passive Transport

• Active Transport

Osmosis is the movement of _____ across a membrane.

• food

• energy

• oxygen

• water

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

What type of transport uses a transport protein?

• Osmosis

• Facilitated diffusion

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

_______ regulates what enters and leaves a cell.  

• Cell Membrane

• Nucleus

• Mitochondria

• Cytoplasm

Tags

NGSS.MS-LS1-2

Equilibrium?

• a large  amount of substance on  side of the cell and a small amount on the other side

• a small  amount of substance on  side of the cell and a large amount on the otherside

• equal amount of substance on either side of the membrane  

• no particles on either side of the a cell membrane

Tags

NGSS.MS-PS1-5

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.MS-LS2-3

Passive Transport means

• Energy is used

• No energy is used

• Energy is created

When the number of water molecules outside of the cell is greater than inside the cell, which will most likely occur?

• Molecules of water will NOT MOVE either way.

• Molecules of water will move OUT of the cell.

• Molecules of water will move INTO the cell.

• Molecules of water will EVAPORATE.

Tags

NGSS.MS-LS1-2