How does active transport occur in terms of concentration?

• From high to low concentration

• From low to high concentration

• Along a concentration gradient

• Without any energy

Which type of molecules require ATP for transport?

• Small nonpolar molecules

• Large molecules like glucose

• Neutral atoms

• Water molecules

What does "ISO" mean in an isotonic solution?

• Equal

• Less

• More

• None

In a hypotonic solution, how does the water concentration inside the cell compare to outside?

• Water IN cell = Water OUTSIDE OF cell

• Water IN cell > Water OUTSIDE OF cell

• Water IN cell < Water OUTSIDE OF cell

• Water IN cell = 0

What is the role of a semi-permeable membrane in osmosis?

• It allows all molecules to pass through

• It blocks all molecules

• It allows only solvent molecules to pass through

• It allows only solute molecules to pass through