Functions of cells

Today we had to find the functions of the parts of the cells. We found the functions of:

cell wall- provides and maintains the shape of the cell. It serves as a protective barrier.

cell membrane*-acts as a barrier to the uncontrolled flow of water. It also allows small molecules to pass through. It is like a filter.

ribosome*-they make protein through a process called protein synthesis.

rough endoplasmic reticulum-transports ribosomes and makes protien. They also store and collect ribosomes.

smooth endoplasmic reticulum- makes hormones, breaks down toxins in the liver, and control the amount of calcium in the muscles.

Mitochondria*-gives energy to the cell and allows it to move.

Nucleus*-holds the DNA that provides the cell with it's characteristics. It is also involved in cellular reproduction.

vacuole-digests and releases waste products. In plant cells they store and release nutrients and hold water. It makes cells grow.

cytoplasm-Paths for protein to travel and it gives the cell it's shape. It also holds the organelles in place.

chloroplasts*-responsible for the plant's green color and lets plants photosynthesize.

lysosomes-help the cell digest. Lysosomes release things to break down the cell when it is dying.

golgi apperatus-packages, tags, and sends nutrients to other parts of a cell.

We used the simulations (http://www.cellsalive.com/cells/3dcell.htm and http://learn.geneticsutah.edu/content/begin/cells/insideacell

The ones with stars are the ones that Mr. Finley wants us to focus on the most. Mr. Finley already finished averaging our quizzes. Until January 1st Mr. Finley won't post anything up on the website (this includes homework). Our homework tonight is to finish whatever we don't finish in class (view work above).

Sophie 3