Tonicity BR

Front

What is tonicity?

Back

Tonicity refers to the ability of a solution to affect the volume and pressure of a cell by osmosis.

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment within an organism.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the cell, resulting in no net movement of water.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the cell, causing water to move out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the cell, causing water to move into the cell.

Front

What is osmosis?

Back

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

Front

How does a cell maintain homeostasis?

Back

A cell maintains homeostasis by regulating what enters and leaves the cell.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, a cell swells as water enters, which can lead to bursting.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, a cell shrinks as water exits the cell.

Front

What is the role of the cell membrane in tonicity?

Back

The cell membrane acts as a semi-permeable barrier that regulates the movement of substances in and out of the cell.