Finally we have a week in review from Biology! For the last several weeks we have been plugging away in our pursuit of all things Biological. The standard course of study for Biology includes a lot of material. I must commend all of the students. They have been absolute troopers when it comes to keeping up with everything. One of the best parts of the class is all of the labs that we have the opportunity to conduct. So, with out further adieu, our first week in review (1/30-2/3) from Natalie Farrell.
This week in biology we learned all about the history of cells. Starting with prokaryotes and eukaryotes. Prokaryotes and Eukaryotes have one major distinct difference. One has a nucleus, Eukaryote, and one does not, Prokaryote. We described all of the parts of cells including, but not limited to, the nucleus, ribosomes, endoplasmic reticulum, mitochondria, etc. We learned about diffusion and osmosis. "Everything moves from an area of high concentration to an area of low concentration".
After we learned about diffusion, we did a very exciting lab where we put a dialysis bag full of starch/water into an iodine/water solution, and we observed the changes. The ending result was that iodine was able to get into the dialysis bag, and glucose was able to escape the bag. The bag pores were to small for the starch to move out of the dialysis bag.
Later that week we learned about cellular transport. We learned about which movements required energy and which didn't, comparing them to a bike ride up and down a hill. We learned about the need for cells, and the different stages of the cell cycle.
This week, we also started on our "the cell is like a..." project. This is where we have to compare a cell to normal everyday things like a school, factory, car etc. Here are some of my fellow classmates working away on one of many labs that we do periodically throughout the week.