Cell Membrane and Diffusion

Osmosis is the diffusion of _____.

• proteins

• cytoplasm

• milk

• water

Water enters the cell in a ____ solution.

• hypertonic

• hypotonic

• isotonic

Water leaves the cell in a ____ solution.

• hypertonic

• hypotonic

• isotonic

What happens to the size of a cell if it is placed in a hypotonic solution?

• it shrinks

• it swells

• it stays the same

What happens to the size of a cell if it is placed in a hypertonic solution?

• it shrinks

• it swells

• it stays the same

What happens to size of the cell if it is placed in an isotonic solution?

• it shrinks

• it swells

• it stays the same

A cell in a ____ solution is in dynamic equilibrium. This means there is no osmosis and the cell size will not change.

• hypotonic

• hypertonic

• isotonic

The cell part that controls what enters and leaves the cell is the:

• Nucleus

• Mitochondria

• Cell Wall

• Cell Membrane

Tags

NGSS.MS-LS1-2

During diffusion, if the concentration of molecules on each side of the cell membrane are THE SAME, what do the molecules do?

• leave the cell

• keep moving back and forth

• enter the cell

• stop moving

This picture shows an experiment with water (blue small dots) and glucose (large red dots). The glucose (solute) CANNOT move across the membrane (middle dashed black line). Which side is hypertonic for solute?

• The left side (less big dots)

• The right side (more big dots)

Tags

NGSS.MS-PS1-2