Passive Transport

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy. It relies on the concentration gradient.

Front

What is osmosis?

Back

Osmosis is the movement 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 diffusion?

Back

Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration.

Front

What is equilibrium in the context of cells?

Back

Equilibrium is the state where the concentration of substances is equal inside and outside the cell, resulting in no net movement of molecules.

Front

What are the two main types of passive transport?

Back

The two main types of passive transport are osmosis and diffusion.

Front

Can passive transport occur in both plants and animals?

Back

Yes, passive transport occurs in both plants and animals.

Front

What role does a cell membrane play in passive transport?

Back

The cell membrane acts as a barrier that selectively allows certain substances to pass through while blocking others.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass while restricting others, crucial for maintaining homeostasis.

Front

How does temperature affect diffusion?

Back

Higher temperatures increase the energy of molecules, leading to faster diffusion rates.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.