QUIZ: DIFFUSION

1. Which of the following is NOT a type of passive transport?
diffusion
osmosis
endocytosis
facilitated diffusion

2. Chamber A contains 40% helium and Chamber B contains 20% helium. Chambers are connected by a tube the molecules are free to cross. Which of the following will occur?
some helium will move from chamber A to chamber B
some helium will move from chamber B to chamber A
helium will remain concentrated in chamber A
all of the helium will move into chamber B

3. What will happen to an animal cell placed in a salt water solution?
The cell will shrink
the cell will expand
the cell will burst
the cell will shrink and then expand and then shrink again

4. An animal cell placed in a hypotonic solution will:
die
take on water
lose water
divide

5. Which of the following is a type of active transport?
sodium potassium pump
endocytosis
exocytosis
all of these

6. Active transport requires:
a concentration gradient
osmosis
energy
a hypertonic solution