Cell Transport

Proteins and polysaccharides that are too large to move into a cell through diffusion or active transport move into cell by

• exocytosis

• endocytosis

• the sodium-potassium pump

• channel proteins

What is the name of the structure at the end of the black line?

• cell-surface marker

• transport or channel protein

• enzyme

• receptor protein

Water will move into a cell that is placed in a(n) _____ solution.

• osmotic

• hypertonic

• hypotonic

• isotonic

Particles move from a region of lesser concentration to greater concentration by ___.

• facilitated transport

• diffusion

• active transport

• osmosis

Which is true about active transport?

• It requires energy

• it does not require energy

• It moves substances down the concentration gradient

• it moves material from high to low concentration

Movement of particles from high to low concentration. 

• Passive Transport

• Active Transport

Tags

NGSS.MS-LS2-3

Movement of materials from high to low concentration through a protein channel. 

• Passive Transport

• Active Transport

What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?

• Diffusion

• Osmosis

• Active Transport

• Facilitated

Osmosis is the movement of _____ across a membrane.

• food

• energy

• oxygen

• water

Molecules diffusing with the concentration gradient through a protein channel is...

• Facilitated Diffusion

• Simple Diffusion

• Active Transport

• Osmosis