Exocytosis and Endocytosis

Part A

Endocytosis moves materials _____ a cell via _____.

	into ... facilitated diffusion
	into ... a transport protein
	out of ... diffusion
	into ... membranous vesicles
	out of ... membranous vesicles

Correct

The prefix "endo-" means "inward."

Part B

Click on the vesicle to start the animation. This is an animation of _____.

	endocytosis
	exocytosis
	osmosis
	phagocytosis
	facilitated diffusion

Correct

A membranous vesicle is fusing with the plasma membrane and releasing its contents into the extracellular fluid.

Part C

Click on the brown debris to start the animation. This is an animation of _____.

	phagocytosis
	diffusion
	receptor-mediated endocytosis
	exocytosis
	facilitated diffusion

Correct

Phagocytosis involves the engulfing of large particles.

Part D

Click on the extracellular fluid to start the animation. You know that this process is _____ because _____.

	phagocytosis ... the cell is engulfing extracellular fluid
	receptor-mediated endocytosis ... a receptor protein is involved
	pinocytosis ... the cell is engulfing a large particle
	phagocytosis ... the cell is engulfing a large particle
	pinocytosis ... the cell is engulfing extracellular fluid

Correct

Pinocytosis is "cell drinking."

Part E

Click on the receptor protein to start the animation. This is an animation of _____.

	facilitated diffusion
	diffusion
	phagocytosis
	receptor-mediated endocytosis
	exocytosis

Correct

A receptor protein is involved in this process.

Part F

A white blood cell engulfing a bacterium is an example of _____.

	receptor-mediated endocytosis
	pinocytosis
	phagocytosis
	exocytosis
	facilitated diffusion

Correct

Phagocytosis occurs when a cell engulfs a large particle.