Cell Transport

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur through various processes such as diffusion, osmosis, and active transport.

Front

Define diffusion.

Back

Diffusion is the process by which particles move from an area of high concentration to an area of low concentration until equilibrium is reached.

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 does 'high concentration area' mean?

Back

A high concentration area refers to a region where particles are tightly packed together.

Front

Why is diffusion important to cells?

Back

Diffusion allows cells to take in materials without using energy, facilitating essential processes like nutrient absorption.

Front

What happens during osmosis?

Back

During osmosis, water molecules move across a membrane to balance solute concentrations on both sides.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas, which drives diffusion.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to occur.

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis and allowing selective transport.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through the cell membrane via protein channels, without the use of energy.