Cell Transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

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

Which statement does NOT apply to a cell membrane?

• made of lipids and proteins
• selectively permeable
• controls what enters and exits the cell
• is hard and rigid; made of cellulose; found in plant cells only

an area with a large amount of particles is

• low concentration
• high concentration
• diffusion
• osmosis

diffusion is the movement of 

• water from low to high concentration
• particles from low to high concentration
• water from high to low concentration
• particles from high to lowconcentration

which of the following terms means the movement of water from high concentration to low concentration

• diffusion
• prokaryotes
• osmosis
• concentration

which way would the purple molecules move through the semi permeable membrane?

• From the  A side  to the B-side
• From the B side to the A side
• none of the purple molecules would move