Cell Transport

Due to the higher concentration of oxygen in the air than your blood, oxygen goes from the lungs into the red blood cells by....

• Facilitated Diffusion
• Diffusion
• Active Transport
• Osmosis

Carbon Dioxide is in high concentration in the body cells and moves with the concentration gradient into the blood stream by this process...

• Facilitated Diffusion
• Diffusion
• Active Transport
• Osmosis

In a nerve cell, ATP energy is used to pump sodium (Na) out of the cell and potassium (K) into the cell. This is an example of...

• Facilitated Diffusion
• Diffusion
• Active Transport
• Osmosis

In the intestines, sodium pumps move sodium (Na) out of your digested food into your intestine cells from low concentration in your food to high concentration in the cell. What kind of cell transport is this?

• Facilitated Diffusion
• Diffusion
• Active Transport
• Osmosis

  A membrane that keeps out some molecules but allows others to pass

• semi-permeable
• permeable
• diffusion
• concentration gradient

What type of transport is shown in the picture?

• Osmosis
• Diffusion
• Endocytosis
• Exocytosis

Particles are too large to enter the membrane. They need help from channel proteins.This doesn't use energy

• active transport
• passive transport
• facilitated diffusion
• osmosis

A plant cell is placed in a solution whose solute concentration is twice as great as the concentration of the cells cytoplasm.  The cell membrane is selectively permeable, allowing water but not the solute to pass through. The water concentration is less on the outside of the cell.  What will happen to the cell?

• No change
• The cell will shrivel because of osmosis
• The cell will swell because of osmosis
• The cell will shrivel because of active transport

The picture below is an example of _________________. This is not water.

• osmosis
• isotonic
• diffusion
• active transport

If the water concentration in a cell is 90% and the water concentration outside the cell is 95%, what direction will the water move?

• Into the cell
• Out of the cell
• The water will not move