passive and active transport

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane without the use of energy, moving from an area of high concentration to an area of low concentration.

Tags

NGSS.HS-LS2-3

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane using energy, typically moving from an area of low concentration to an area of high concentration.

Tags

NGSS.HS-LS2-3

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water will move out of the cell, causing it to shrink.

Tags

NGSS.HS-LS1-3

Front

What is the primary difference between passive and active transport?

Back

The primary difference is that passive transport does not require energy, while active transport does.

Front

What is endocytosis?

Back

Endocytosis is a form of active transport where cells engulf substances to bring them into the cell.

Front

What is exocytosis?

Back

Exocytosis is a form of active transport where cells expel substances to the outside of the cell.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the concentration of solutes is lower outside the cell than inside, causing water to move into the cell.

Tags

NGSS.HS-LS1-3

Front

What is a hypertonic solution?

Back

A hypertonic solution is one where the concentration of solutes is higher outside the cell than inside, causing water to move out of the cell.

Front

What role do transport proteins play in active transport?

Back

Transport proteins help move substances across the cell membrane against their concentration gradient, requiring energy.