:D moving cellular material

Hey guys! Guess what we are going to talk about today? CELLS!...(ughhh) come on its going to be interesting and fun! :D (font colors match the background, Hunger games!)

       Okay, so the first question I am going to answer is: How do materials enter and leave the cell. Well, the cell has a protective layer called the cell membrane that regulates what comes in and what leaves. Endocytosis is the process where the cell absorbs molecules. 

        There are two different ways for molecules to come in and out of the membrane, active and passive transport. Active transport is when the cell uses energy to transport molecules.  Passive transport  is moving molecules across the cell membrane without using energy.  Facilitated diffusion is a type of passive transport, its when molecules pass through the membrane spontaneously, through proteins.

 (Diffusion/ Aubrey above)

          Diffusion is when  molecules move from an area of high concentration to an area of low concentration to even it out, or reversed. So when you spray air freshener for awhile you can only smell it in 1 area but then once the molecules move you can smell it a little bit farther away.  Facilated diffusion is when Osmosis is when water moves across the membrane.

       How does cell size affect the transport of materials? Well, when a cell gets bigger its volume "grows" very fast and its hard for the cell membrane to keep up with all the materials wanting to come in and leave. For example at a concert, you have a ticket but when there are a lot of people the guards can't keep up with everyone.

 Thanks for reading my blog!  Hope you learned something!  Here are some links.  Have a great day! 

Here is a link with games on cells... 
Here is a link on tutorial for games