Cell Transport

What piece of playground equipment can be compared to cells maintaining homeostasis?

• monkey bars

• see-saw

• swings

• slide

What is the primary role of the cell membrane in maintaining cellular balance?

• Producing energy for the cell

• Storing genetic information

• Controlling the movement of substances into and out of the cell

• Synthesizing proteins

Which example shows passive diffusion?

• High concentration to low concentration.

• Low concentration to low concentration.

• High concentration to high concentration.

• Low concentration to high concentration.

What is the defining feature of active transport that differentiates it from passive transport?

• It moves molecules with the concentration gradient

• It does not require the use of transport proteins

• It requires energy, typically ATP, to move molecules against their concentration gradient

• It only transports small, non-polar molecules