Osmosis vs. Diffusion

What is osmosis?

When molecules of solvent pass through a membrane from a higher to lower concentration of ions.

What is diffusion?

When something is spread.

What is the difference between the two?

Osmosis is all about water molecules while diffusion is about anything going from high to low concentration.

Is energy used in either process?

None of the require energy.

What is concentration gradient? Give an example.

Concentration is the gradual change in the concentration of solvents. An example is osmosis.

How do the terms solvent and solute fit in learning about osmosis and diffusion?

A solvent is what the liquid is when it is being dissolved and solute is the solution dissolved in the solvent.

Is water always a solvent?

No, because another example of a solvent is an alcohol solution.

Biology Class

 Today in bio class we did this web-walk thing again. It's when you go on certain websites and take notes. I learned about prokaryotic and eukaryptic cells. Prokaryotic cells are multi-cellular organisms while eukaryotic are single celled organisms. We are prokaryotic.Did you know that if you cut a cell in half it can't survive? Membranes and watery and jelly like!

 Prokaryotic cells are things like you, me, and animals. While eukaryotic cells are bacteria. Prokaryotic cells have a nucleus and eukaryotic cells don't, that's one difference.