Explore Cell Structure and Transport Mechanisms

Front

The cell membrane is selectively permeable, which means...

Back

Certain things can enter while others cannot

Front

Which transport does not require energy?

Back

Passive

Front

Osmosis

Back

diffusion of water through a selectively-permeable membrane

Front

What is true about active transport?

Back

It requires energy

Front

If you put a plant in salt water it will ...

Back

shrivel because water diffuses out of the cell

Front

Diffusion is the movement of

Back

particles from high to low concentration

Front

The movement of molecules against a concentration gradient

Back

active transport

Front

Some celery sticks were placed in distilled water. What type of solution are they in? What will happen to the celery sticks?

Back

hypotonic, the celery sticks increase in size

Front

Which substance would have the most trouble crossing the membrane by diffusing through the bilayer? Options: water, oxygen, carbon dioxide, a sodium ion.

Back

a sodium ion

Front

What happens to a human red blood cell in hypotonic conditions?

Back

Water will enter the red blood cell, which will cause the red blood cell to swell and burst since it lacks a cell wall.