Cellular Transport

How many different kinds of cellular transport are there?

• 1

• 2

• 3

• 4

Which of the following requires energy?

• Passive transport

• diffusion

• Active transport

• osmosis

In passive diffusion, substances are carried across the plasma membrane _____ a concentration gradient.

• against

• down

Which of the following are kinds of passive transport? Choose all the correct answers.

• Facilitated diffusion

• endocytosis

• Simple diffusion

• osmosis

• ATP pumps

Which kind of passive transport is for small, polar molecules (example, gases)?

• Simple diffusion

• Facilitated diffusion

• Osmosis

Which kind of passive transport is for water?

• Simple diffusion

• Facilitated diffusion

• Osmosis

Which kind of passive transport is for bigger molecules and ions (example, glucose)?

• Simple diffusion

• Facilitated diffusion

• Osmosis

What are the two kinds of transport proteins used for facilitated diffusion?

• carrier proteins

• receptor proteins

• glycoproteins

• channel proteins

Carrier proteins ______.

• are like pores in the plasma membrane that open and close

• change their shape after the substance binds to it

• used to carry ions

• used to carry large particles, such as glucose

Channel proteins ______.

• are like pores in the plasma membrane that open and close

• change their shape after the substance binds to it

• used to carry ions

• used to carry large particles, such as glucose