Otterspoor Quiz O'matic

1. Diffusion is defined as

a. The movement of people from an area of lower concentration to an area of higher concentration
b. The movement of sodium ions to fill their outer electron orbit
c. The movement of molecules from an area of higher concentration to an area of lower concentration caused by active transport
d. The movement of molecules from an area of higher concentration to an area of lower concentration caused by kinetic energy

2. Passive transport

a. Uses energy to move materials across a cell's membrane
b. Uses no energy to move materials across a cell's membrane
c. Moves materials from areas of low concentration to high concentration
d. Can only happen across a cell's membrane

3. Hypertonic solutions

a. have more solvent by concentration than hypotonic solutions
b. have more solute by concentration than hypotonic solutions
c. have more solvent by volume than hypotonic solutions
d. are water loving

4. The diffusion of water into and out of cells across a selectively permeable membrane is called osmosis.

a. true
b. false
c. applesauce
d. applesauce

5. Dynamic equilibrium is the process of

a. passive transport in which proteins aid the passage of particles across the plasma membrane.
b. active transport in which proteins aid the passage of particles across the plasma membrane.
c. passive transport in which the amount of material entering the cell is equal to the amount of material exiting
d. active transport in which the amount of material entering the cell is equal to the amount of material exiting

6. Which process can move particles from areas of either low to high or high to low concentration?

a. osmosis
b. active transport
c. diffusion
d. facilitated diffusion

7. A cell containing 1% solute is placed in an isotonic solution. If the cell's membrane is impermeable to solute

a. The cell will swell
b. The cell will shrink
c. The cell will loose solute
d. The cell will remain at equilibrium

8. Which process requires the use of cell membrane protein pumps?

a. osmosis
b. active transport
c. diffusion
d. passive transport

9. Which process requires the presence of either cell membrane channels or carrier proteins?

a. osmosis
b. endocytosis
c. diffusion
d. facilitated diffusion

10. Particles that are soluble in lipids will typically move through a membrane by

a. reverse osmosis
b. active transport
c. diffusion
d. exocytosis

11. A piece of celery is placed in a bowl of water. Which of the following best describes what happens to the cells of the celery

a. they plasmolyze
b. they loose water via osmosis
c. the water vacuoles actively transport water into the cell
d. the cell gains water via osmosis and the amount of turgor pressure increases.

12. To shrink a plant cell it should be placed in a solution that has

a. more solvent than the plant cells
b. less solvent than the plant cell
c. an equal concentration to the plant cell
d. been seasoned with pepper and onion

13. To prevent osmotic rupture plant cells have evolved to have

a. cell walls
b. cell membranes
c. cells
d. leaves

The Otterspoor.com Practice Quiz O'matic : diffusion