Passive Transport intro

Front

What is passive transport?

Back

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

Front

What role does the cell membrane play in homeostasis?

Back

The cell membrane helps maintain homeostasis by allowing molecules to move into and out of the cell as needed.

Front

What does it mean for a cell membrane to be selectively permeable?

Back

A selectively permeable membrane regulates which substances can enter and exit the cell, allowing some materials to pass while blocking others.

Front

What happens when the concentration of water outside the cell is greater than inside?

Back

Molecules of water will move INTO the cell.

Front

What is diffusion?

Back

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

Front

Can diffusion occur in both plants and animals?

Back

Yes, diffusion can occur in both plants and animals.

Front

Which part of the cell controls the movement of substances?

Back

The cell membrane controls the movement of substances.

Front

What is osmosis?

Back

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

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.