Cell Transport Review

The cell membrane is semi-permeable because . . .

• it allows ALL molecules to pass in and out

• it allows SOME molecules to pass in and out

• it allows NO molecules to pass in and out

The movement of molecules through the plasma membrane using cellular energy is known as . . .

• passive transport

• active transport

• osmosis

• semi-permeable

In order for active transport to occur, the membrane needs carrier proteins and . . .

• active transport

• mitochondria

• ATP

• oxygen

Osmosis diffuses _____________ molecules through the plasma membrane.

• sugar

• carbon dioxide

• water

• oxygen

Passive transport moves molecules across the semi-permeable membrane that are _________ and __________.

• polar and small

• non-polar and small

• polar and large

• non-polar and large

Active transport moves . . .

• with the concentration gradient

• against the concentration gradient

In diffusion, molecules move from __________ to ________ concentration.

• low to high

• medium to low

• high to low

• hot to cold

__________ is a waste produce that moves through the cell membrane out of the cell.

• sugar

• water

• oxygen

• carbon dioxide

Tags

NGSS.MS-LS2-3

Cells need to go through osmosis because . . .

• oxygen is important to cells

• cells need energy

• cells need proper hydration to function

• cells want to smell good

Which is an example of diffusion?

• spraying febreze in a room

• dropping water on the ground

• hiking up a steep hill

• riding your bike down a hill