Cell Transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Which is true about active transport?

• It requires energy
• it does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration

Movement of particles from high to low concentration. 

• Passive Transport
• Active Transport

Osmosis is a form of ______________. 

• Passive Transport
• Active Transport

What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?

• Diffusion
• Osmosis
• Active Transport
• Facilitated Diffusion

The cell below is in a _________ solution.

• Hypotonic
• Hypertonic
• Isotonic

The cell below is in a _____________ solution.

• Hypertonic
• Hypotonic
• Isotonic

A cell in an isotonic solution will

• swell
• shrink
• stay the same size
• impossible to tell

When a cell is placed in a hypertonic solution water

• moves from the inside of the cell to the solution
• moves from the solution to the inside of the cell
• moves equally in and out of the cell
• none of these

A cell will __________________ in a hypotonic solution.

• swell and perhaps burst (lyse)
• shrink
• the size of the cell will not change
• the size of the cell will change from large to small and from small to large