HS-LS1-3: Homeostasis

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

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.

Front

What is facilitated diffusion?

Back

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

Front

What are the three types of passive transport?

Back

The three types of passive transport are diffusion, osmosis, and facilitated diffusion.

Front

What happens to an animal cell in a hypertonic solution?

Back

An animal cell placed in a hypertonic (salty) solution will shrink and get smaller due to the loss of water.

Front

What is diffusion?

Back

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

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Tags

NGSS.HS-LS2-3

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move molecules against their concentration gradient, while passive transport does not require energy and moves molecules along their concentration gradient.

Front

What is a hypertonic solution?

Back

A hypertonic solution is one that has a higher concentration of solutes compared to another solution, leading to water moving out of cells placed in it.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one that has a lower concentration of solutes compared to another solution, causing water to move into cells placed in it.