Monday, January 30, 2012

Moving Cellular Material






Passive Transport:


Passive transport works by diffusion or osmosis. 
Diffusion is like when someone sprays like Lysol or febreeze. Where the lysol is sprayed that is the high concentration area. Then once the lysol spreads around the room that is called low  areas. 


Osmosis is when water molecules are diffused across the cell membrane







Active Transport: is like passive transport but it needs energy to work because it pushes the molecules along the cell membrane.










Facilitated Diffusion:is a type of passive transport that allows stuff to cross membranes.

Endocytosis is when a solid or liquid enters a cell.And exocytosis is when a solid or liquid exits a cell. 



After Caffine

 

Tuesday, January 17, 2012

Cells





prokaryotic cells


Bacteria is an example of a prokaryotic cell.  
prokaryotic cells do not have a membrane bound nucleus.And pro-karyotic is Greek for before nucleus. Besides bacteria some algae are prokaryotes.





Eukaryotic Cells

Eukaryotic cells make apple trees, mushrooms and dust mites. They have areas called organelles that live in the eukaryotic cell. Different organelles have different roles in the cell like the mitochondria makes energy from food molecules, lysosomes break down and recycle organelles, and the endoplasmic reticulum builds membranes and transports protein throughout the cell.  






Wednesday, January 4, 2012

2012!!!!!!!!!!!!!! Year Of Death

Hello everybody are you ready for 2012 because alot of people arent but it could be true.








Official2012Countdown.com


Now on to something less depressing. So everybody just came back from break but wanted it to last longer. It was so much fun we had christmas and i got alot of really cool stuff I stayed inside all day playing with my new stuff.




Then we celebrated my brothers birthday and went out to eat it was so good. But my brother has the best birthday ever its on New Years eve. He is so lucky because everybody is celebrating his birthday and they dont even know it.



Then I stayed up till midnight and watched the ball drop on T.V. and ate a huge chocalate cake. Then our neighbors were setting of fireworks so I watched them. And stayed up really really late talking to friends and got like an hour of sleep.



So in this new year I would really like to get all A's or all good grades. So thats it bye.