Homeostasis and Feedback Review

Front

What is Passive Transport?

Back

Passive Transport is the movement of solutes across a cell membrane without the use of energy, moving with the concentration gradient.

Front

Define Facilitated Diffusion.

Back

Facilitated Diffusion is the movement of molecules across the cell membrane from an area of high concentration to low concentration, aided by transport proteins.

Front

What are the three types of transport that go from high to low concentration?

Back

The three types of transport that go from high to low concentration are diffusion, osmosis, and facilitated diffusion.

Front

What is Osmosis?

Back

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

Front

What happens when the environment gets cold?

Back

When the environment gets cold, the body often shivers to increase body temperature.

Front

What is Active Transport?

Back

Active Transport is the movement of molecules across a cell membrane against the concentration gradient, requiring energy.

Front

What is the role of the cell membrane?

Back

The cell membrane surrounds the cell and controls what enters and leaves the cell.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solutes from high to low concentration, while osmosis specifically refers to the movement of water.

Front

What is a concentration gradient?

Back

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

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.