Unit 5: Cell Transport Test Review

What organelle regulates what materials enter and leave the cell.

• Ribosomes

• Cell Membrane

• Golgi Apparatus

• Cell Wall

True or False: The channels and pumps located in the cell membrane are made up of proteins.

• True

• False

The movement of molecules from an area of high concentration to an area of low concentration is known as

• division

• duplicated movement

• diffusion

• active transport

What does active transport require in order to take place?

• ATP (energy)

• Carbohydrates

• Water

• Sunlight

Osmosis is

• the diffusion of ions across a selectively permeable membrane.

• the diffusion of macromolecules across a selectively permeable membrane.

• the diffusion of oxygen across a selectively permeable membrane.

• the diffusion of water across a selectively permeable membrane.

Which type of transport does not require energy?

• Diffusion

• Osmosis

• Exocytosis

• Facilitated Diffusion

If water moves out of a cell and the cell shrinks, the cell was placed in what type of solution?

• Hypertonic

• Isotonic

• Hypotonic

• Hippopotamus

Endocytosis occurs when cells use energy to transport large molecules __________ the cell.

• into

• out of

• within

• behind

What is facilitated diffusion?

• Active transport

• Diffusion through a protein in the cell membrane

• Pumping low to high

• Requires ATP

What requires energy to move 3 Na+ ions out of the cell and pump 2 K+ ions into the cell

• Sodium ion pumps

• Potassium ion pumps

• Sodium potassium pump

• Periodic pumps