Cell Transport- AP Biology

Which term describes the movement of molecules from an area of higher concentration to an area of lower concentration?

• Active transport

• Passive Transport

• Endocytosis

• Exocytosis

What is the main function of the cell membrane in cell transport?

• Producing energy

• Controlling what enters and leaves the cell

• Storing genetic information

• Synthesizing proteins

Which type of transport requires energy from the cell?

• Osmosis

• Facilitated diffusion

• Active transport

• Simple diffusion

What is osmosis?

• Movement of water across a selectively permeable membrane

• Movement of proteins into the nucleus

• Movement of ions through a pump

• Movement of glucose by endocytosis

Which structure in the cell membrane helps transport large or charged molecules across the membrane?

• Phospholipid bilayer

• Protein channels

• Nucleolus

• Ribosomes

Which of the following best describes facilitated diffusion?

• Movement of molecules against the concentration gradient using energy

• Movement of molecules through protein channels without energy input

• Movement of water only

• Movement of molecules by endocytosis

A cell is placed in a hypertonic solution. What will most likely happen to the cell?

• It will swell and burst.

• It will shrink.

• It will remain the same size.

• It will divide.

How does the sodium-potassium pump move ions across the cell membrane?

• By passive diffusion

• By using ATP to move ions against their concentration gradients

• By osmosis

• By endocytosis

Which process allows a cell to take in large particles by engulfing them with its membrane?

• Exocytosis

• Endocytosis

• Diffusion

• Osmosis

Why do plant cells not burst when placed in a hypotonic solution, while animal cells might?

• Plant cells have a cell wall that provides structural support.

• Plant cells have more protein channels.

• Animal cells have a thicker membrane.

• Animal cells use more energy.