cell transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

This picture represents what type of cell transport?

• endocytosis
• exocytosis
• osmosis
• passive transport

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

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

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

Active transport requires _____ to move materials across the cell membrane.

• proteins
• sunlight
• oxygen
• energy

Something is ___________ ____________
when some molecules can cross the membrane while others cannot. 

• Selectively (or Semi) Permeable 
• Totally Transparent
• Liquid Licorice 
• Heavily Patrolled