04 BIO B1 Transport Phenomena in
Biosystems A PREPARATION TEST 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● Diffusion. Answer: movement of substances from an area of higher
concentration to an area of lower concentration
● Hypertonic. Answer: higher concentration of solutes outside the cell
than inside the cell, water flows out of the cell
● Hypotonic. Answer: lower concentration of solutes outside the cell
than inside the cell, water flows into the cell
● Isotonic. Answer: concentration of a solute is equal inside and outside
● Facilitated diffusion. Answer: molecules pass through a cell
membrane using transport proteins
● Active Transport. Answer: movement of substances through a cell
membrane only by using the cell's energy (ATP)
Biosystems A PREPARATION TEST 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● Diffusion. Answer: movement of substances from an area of higher
concentration to an area of lower concentration
● Hypertonic. Answer: higher concentration of solutes outside the cell
than inside the cell, water flows out of the cell
● Hypotonic. Answer: lower concentration of solutes outside the cell
than inside the cell, water flows into the cell
● Isotonic. Answer: concentration of a solute is equal inside and outside
● Facilitated diffusion. Answer: molecules pass through a cell
membrane using transport proteins
● Active Transport. Answer: movement of substances through a cell
membrane only by using the cell's energy (ATP)