Today at the start of class Mr. Finley said that the test that was suppose to be on Tuesday, 12/21/10, is changed to Wednesday, 12/22/10. It was changed because Mr. Finley cannot do an 8th grade study session on the same morning as a 7th grade study session. So, our study session will be Wednesday morning, the day of the test. Soon after that Mr. Finley started to continue the topic from Friday, which was the cell membrane one. He started talking about how the blue dye mixes with the water. Some things that happened were mixing, swirling, and spreading, from Friday. Mr. Finley started to tell us that with a cell when there are more molecules on the outside more will try to get in until its equal in both sides. After that we watched a movie on Cells.
Notes on Movie-
The first thing that they talked about were eukaryotic cells and prokaryotic cells. Eukaryotic cells have areas inside of it that separate off from the rest of the cell by membranes. The areas I am talking about include nucleus, lots of mitochondria, and other organelles such as Golgi Body. To learn more about that review the packet, Cell Classification Article. The Prokaryotic cell doesn't have a nucleus mitochondria or any other kind of membrane. The cell membrane is the boundary of the cell. Nucleus and ribosomes are made in a cell membrane. The Cytoplasm has most of the organelles, it takes up more than half the cell in most cells. Mitotibulis are hollow, it can be taken apart. Mitochondria are when organic breaking cells break down. If you zoomed into Mitochondria you would see a small little Mitochondrian. Chloroplasts absorb light energy, a type of palstic. Mitochondria is cells saving a lot of energy to save mitochondrian in them. The funtion of chloroplasts is when photosynthesis conducts. The ribosomes form consists of protein and RNA. The Smooth ER has no ribosomes, transports fat, and limits detosifies drugs. Golgi Apparatus consists vesicles like a processing station. Lisisomes get rid of organelles, vacuole maintain plant cells, pressure and provide stability to the plant.
SK
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