Cell Membrane, Transport, Hypertonic, Hypotonic, Isotonic

Front

What is the primary function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and support.

Front

What role does cholesterol play in the cell membrane?

Back

Cholesterol provides stability and fluidity to the cell membrane.

Front

Define hypotonic solution.

Back

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

Front

What happens to a cell placed in a hypotonic solution?

Back

The cell will swell and may burst due to the influx of water.

Front

Define hypertonic solution.

Back

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

Front

What happens to a cell placed in a hypertonic solution?

Back

The cell will shrink as water exits the cell.

Front

Define isotonic solution.

Back

An isotonic solution has an equal concentration of solutes compared to the inside of the cell, resulting in no net movement of water.

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

How do ocean fish adapt to their environment regarding osmotic pressure?

Back

Ocean fish are adapted to live in a hypertonic environment, where they actively excrete salt and retain water.

Front

What effect does placing celery sticks in pure water have on their cells?

Back

The celery cells will swell due to being in a hypotonic solution, making the celery crisp.