Professional Lab Report Writing Help
Writing a lab report is a norm for students pursuing various career paths in sciences. A lab report is basically a well-written description of a given experiment. When writing such a report, you are expected to clearly describe the various steps that you followed in doing the given experiment, what you used, the results and what can possibly be learned from the given experiment. One of the common types of tasks that biology students have to complete is writing a potato osmosis lab report. This experiment is basically used to study osmosis. Osmosis can be understood as the process by which solvent molecules move from an area where they are highly concentrated to an area where they have a low concentration through a selectively permeable membrane until the concentration of the solvent molecules is the same in both sides of the semi-permeable membrane. The various crucial details that you should be sure to include in your potato osmosis lab report include; a title page, the title of your experiment, introduction, materials, the methods of the various steps that you followed when conducting the experiment, data or the results of your experiment, discussion of the results, conclusion and a list of references used in the lab report. We are glad to let you know that our potato osmosis lab report writers are on the standby mode ready to assist you should you be having any troubles in writing your lab report.
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Sample of a Simple Potato Osmosis Lab Report
Presented below is a sample of a simple potato Osmosis lab report that you can use as a guide when writing your lab report if you want your work to be awarded reasonably high marks. You can however always consult us at any given time should you feel that there is something that you don’t understand from this sample.
Introduction- Osmosis is a unique type of diffusion whereby solvent molecules move from a region of high concentration to a region of low concentration through a selectively permeable membrane. The purpose of this experiment is to investigate the osmotic activity of potato when exposed to two regions with different concentration of molecules of water whereby one region is filled with distilled water while the rest is filled with 25% sugar solution.
Materials- A large potato, Petri plate, 25% sugar solution, distilled water, two pins, and a knife.
Methods- The first step is to peel the potato. The second step is to cut both the ends of the peeled potato. The idea here is to come up with a potato that is flat on both sides. Thirdly, you need to estimate the center of the potato and then make a cavity or a hollow that runs from one of the flat side of the potato to almost the other end of the potato. The fourth step is to mark the point that separates the Petri plate into two halves and pour distilled water up to this point. The fifth step is to place the potato in the distilled water in the Petri plate while the cavity/hollow is facing upwards. The sixth step is to pour the 25% sugar concentration into the cavity/hollow until it is half full. This is followed by marking the level of the solution in the cavity using one of the pins. The eighth step is to leave this experiment uninterrupted for three hours or so. Finally you should mark the changes in level of the solution in the cavity in the potato using the second pin.
Results/observations- It was observed that the level of water in the cavity/hollow in the potato considerably rose from the level initially marked by the first pin to a new level marked by the second pin.
Discussion- Water molecules moved from where they are highly concentrated in the Petri plate to the region where they have a lower concentration in the cavity/hollow in the potato through a semi-permeable membrane. This explains the rise of water in the cavity in the potato. The potato cells acts as a semi-permeable membrane whereby they selectively allow the entry of distilled water from the Petri plate to the 25% sugar solution in the cavity.
Conclusion- The concept of osmosis is clearly demonstrated by this experiment. Water molecules are observed to have moved from the region where they are highly concentrated to the region where they have a low concentration through semi-permeable membrane in the cells of the potato. From the experiment, it can be deduced that in order for osmosis to take place there must be a semi-permeable membrane that separates two regions that have different concentration of solvent molecules. Osmosis can therefore be used to explain how plant cells get water from the soil and the transpiration process whereby plant cells lose water into the atmosphere. When water is entering a plant cell, its wall (a semi-permeable membrane) prevents excess water from entering as this can make it burst due to osmotic pressure.