All cells contain a semipermeable membrane that allows certain materials to flow through it according to the need of the cell (Biology 105: Laboratory Manual, 2017). The membranes are made of lipids and proteins that allow different sized molecules to pass through. Some molecules use passive transport, which requires no energy, to pass through the membrane. The molecules that do require energy go through the process called active transport. Active transport is made possible through ATP which is produced by the mitochondria. With a substance such as dinitrophenol, or DNP, mitochondria production of ATP stops and prevents active transport from occurring. Then, there is diffusion which is the movement of molecules from a higher level of concentration to that of a lower one through a membrane. The diffusion of water through a membrane is call osmosis. Osmosis can affect cells in many different ways. If a cell contains too much water than the cell will burst and die. If the cell receives …show more content…
Osmosis occurs by itself and is an automatic function. Distilled water has a higher chance of stomas opening than the other solutions. It only lets in certain solutes and that is why the stomata opened for distilled water. Osmosis is important because it evens out the concentration by going through the semi-permeable membrane. Yes, the results we received matches the primary source we found because it discusses how only water is let through the semi-permeable membrane because it does not want to be dehydrated (Cath et al., 2006). Possible things that could have gone wrong during the experiment is giving the leaf too many drops of a solution. The experiment could have gone better if all the groups were able to accurately count all of the stomata, but it was difficult since it was under the microscope. Unfortunately, not everyone was able to keep track of the areas that were already counted on the