Passive Transport

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, relying on concentration gradients.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What is the primary difference between diffusion and osmosis?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of other types of molecules.

Front

What is a selectively permeable membrane?

Back

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

Front

What happens to animal cells in a hypertonic solution?

Back

Animal cells shrink because water moves out of the cell due to osmosis.

Front

What happens to plant cells in a hypotonic solution?

Back

Plant cells become turgid (firm) because water enters the cell, but the cell wall prevents bursting.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell.

Front

What is the function of the cell wall in plant cells?

Back

The cell wall provides structural support and protection, preventing the cell from bursting in hypotonic solutions.

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is reached when the concentration of molecules is the same on both sides of the membrane.