Amoeba Sisters - Cell Transport

What is the primary function of the cell membrane?

• To produce energy for the cell

• To store genetic material

• To control the movement of substances in and out of the cell

• To synthesize proteins

What are the two main parts of a phospholipid molecule in the cell membrane?

• A polar head and a polar tail

• A non-polar head and a non-polar tail

• A polar head and a non-polar tail

• A non-polar head and a polar tail

Which type of passive transport requires the assistance of transport proteins to move molecules across the cell membrane?

• Simple diffusion

• Active transport

• Facilitated diffusion

• Osmosis

What is a key characteristic of active transport?

• It moves molecules from a high concentration to a low concentration

• It does not require energy

• It moves molecules against their concentration gradient

• It only transports small, non-polar molecules