Cell Membrane Structure and Passive Transport

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What happens to a cell in a hypertonic solution?

Back

Water moves from the inside of the cell to the solution.

Front

What is the process that allows only water to pass through the cell membrane from high to low concentration?

Back

Osmosis.

Front

What occurs to a cell in an isotonic solution?

Back

The cell stays the same size.

Front

What is formed due to a difference in concentration of particles on opposite sides of the membrane?

Back

Concentration gradient.

Front

Define passive transport.

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is facilitated diffusion?

Back

The process of transporting substances across a cell membrane with the help of carrier proteins.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is the difference between hypertonic and hypotonic solutions?

Back

Hypertonic solutions have a higher concentration of solutes compared to the cell, while hypotonic solutions have a lower concentration.

Front

What is equilibrium in the context of cell membranes?

Back

A state where the concentration of solutes is equal on both sides of the membrane.