Cell Membrane Transport Quiz

What is the main difference between active and passive transport across the cell membrane?

• Neither requires energy.

• Both require energy but in different forms.

• Passive transport requires energy, while active transport does not.

• Active transport requires energy, while passive transport does not.

Which of the following is a characteristic of facilitated diffusion?

• It moves molecules against the concentration gradient.

• It requires ATP to function.

• It uses a carrier protein to move molecules.

• It involves the movement of water molecules.

What is osmosis?

• The movement of solutes from high to low concentration.

• The movement of water from low to high solute concentration across a semi-permeable membrane.

• The movement of molecules using a carrier protein.

• The movement of molecules against the concentration gradient using ATP.

In primary active transport, what is the source of energy used to move molecules?

• The breakdown of glucose.

• The use of carrier proteins.

• The breakdown of ATP.

• The movement of water molecules.

How does secondary active transport differ from primary active transport?

• It only moves molecules in the same direction.

• It uses the energy from one molecule moving down its gradient to transport another molecule.

• It uses the energy from ATP directly.

• It does not use any form of energy.