Cell Transport Mechanisms Quiz

What is the primary difference between normal diffusion and facilitated diffusion?

• Facilitated diffusion moves molecules from low to high concentration.

• Normal diffusion occurs only in liquids, while facilitated diffusion occurs in gases.

• Facilitated diffusion involves the use of proteins, while normal diffusion does not.

• Normal diffusion requires energy, while facilitated diffusion does not.

Which type of transport involves the movement of large molecules with the help of proteins?

• Osmosis

• Normal diffusion

• Facilitated diffusion

• Active transport

In osmosis, water molecules move from a _______ solution to a _______ solution.

• isotonic; hypertonic

• hypertonic; isotonic

• hypertonic; hypotonic

• hypotonic; hypertonic

Which of the following is true about passive transport?

• It requires ATP to function.

• It moves substances from low to high concentration.

• It occurs without the need for energy.

• It only involves the transport of water molecules.

What is required for active transport to occur in cells?

• Energy in the form of ATP

• A concentration gradient from high to low

• A semipermeable membrane

• Carrier proteins only