Cellular Transport

Front

What is Active Transport?

Back

Active Transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy input from the cell.

Front

What are the main components of the cell membrane that facilitate transport?

Back

The channels and pumps in the cell membrane are primarily made of proteins.

Front

What is Passive Transport?

Back

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

Tags

NGSS.HS-LS2-3

Front

What is the function of the Cell Membrane?

Back

The Cell Membrane regulates what enters and exits the cell, maintaining homeostasis.

Tags

NGSS.HS-LS1-3

Front

What is Facilitated Diffusion?

Back

Facilitated Diffusion is the process by which molecules move across a cell membrane through protein channels, without the need for energy, and along the concentration gradient.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance between two areas, which drives the movement of molecules during transport.

Front

What role do proteins play in cellular transport?

Back

Proteins act as channels and pumps in the cell membrane, facilitating the movement of substances in and out 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 the difference between Active Transport and Passive Transport?

Back

Active Transport requires energy to move substances against their concentration gradient, while Passive Transport does not require energy and moves substances along their concentration gradient.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others, thus controlling the movement of substances.