Week of 11/1

We took our microscope and cell chapter test on Monday. On Wednesday, students set up a lab where they submerged a carrot in fresh water and another in salt water. We discussed the properties of osmosis and diffusion, and then we viewed the results on Friday. Most students observed that the carrot in fresh water got larger and more firm, and the one in salt water got smaller and more flexible. Students were asked to explain their lab results by recalling how waters diffuses across the cell membrane (osmosis). Next week, we will discuss the important properties of photosynthesis, cellular respiration, and fermentation.