Human Biology

Question 1

Simple diffusion

Answer 1

Random movement from region of higher concentration to region of lower
concentration

Question 2

Facilitated diffusion

Answer 2

Movement from region of higher concentration to region of lower
concentration with the aid of a carrier or channel protein

Question 3

Osmosis

Answer 3

Movement of water from region of higher water concentration (lower solute concentration) to region of lower water concentration (higher solute
concentration)

Question 4

Active transport

Answer 4

Movement, often from region of lower concentration to region of higher
concentration, with the aid of a carrier protein and energy, usually from A TP

Question 5

Endocytosis

Answer 5

Process by which materials are engulfed by the plasma membrane and drawn
into cell in a vesicle

Question 6

Exocytosis

Answer 6

Process by which a membrane-bound vesicle from inside the cell fuses with
the plasma membrane and spills contents outside the cell