Unit 3 Perform #1 Retest

Front

What is diffusion?

Back

Diffusion is the process where molecules move from an area of high concentration to an area of low concentration.

Front

Where is there a low concentration of dye?

Back

The low concentration of dye is found at the bottom of the cup.

Front

Which cell is in a solution that has more water in the solution than in the cell?

Back

The cell on the right is in a solution with more water than in the cell.

Front

What is osmosis?

Back

Osmosis is the movement of water across a semi-permeable membrane.

Front

During osmosis, what direction does water move?

Back

Water moves from an area of high concentration to an area of low concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the concentration of solutes is lower outside the cell than inside, causing water to enter the cell.

Front

What is a hypertonic solution?

Back

A hypertonic solution is one where the concentration of solutes is higher outside the cell than inside, causing water to leave the cell.

Front

What is isotonic solution?

Back

An isotonic solution has equal concentrations of solutes inside and outside the cell, resulting in no net movement of water.

Front

What role do cell membranes play in osmosis?

Back

Cell membranes are semi-permeable, allowing water to pass through while restricting the movement of solutes.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will shrink as water moves out of it.