Cellular Transport (Chapter 5)

cell membrane = (select all that apply)

• cell wall

• plasma membrane

• phospholipid bilayer

What kinds of cells have a cell membrane?

• plant

• animal

• all

What is the main molecule that makes up a cell membrane?

These make up the phospholipids in the cell membrane:

• acids & bases

• polar phosphate head & non-polar fatty acid tail

• hydrophobic heads & hydrophilic tails

When somethings are able to pass through a cell membrane but others aren't, the membrane is referred to as _.

• lipid positive

• hydrophilic

• semi-permeable

• fluid mosaic

What kind of molecules can easily pass through the cell membrane?

• non-polar, small, hydrophobic

• polar, hydrophilic

What kind of molecules cannot easily pass through the cell membrane?

• non-polar, small, hydrophobic

• polar, hydrophilic

The cell membrane is described as a _ because it is made up of many different types of molecules and they move around as needed.

Passive transport...(select all true)

• doesn't require energy.

• moves down a concentration gradient.

• includes diffusion.

• requires ATP.

The 3 types of passive transport include

• osmosis, diffusion, & sodium pump.

• size, temperature, & concentration.

• facilitated diffusion, sodium-potassium pump, & osmosis.

• diffusion, osmosis, & facilitated diffusion.