For example, in my raw data, concentration of grape juice solution of 40%, the initial weight of the potato was 6.00g however, after 15mins the weight of the potato decreased to 5.63g henceforth, the potato lost 0.37g. My qualitative data showed that the potatoes began floating
This indicates that all of the solutions have been hypertonic in relationship to the potato tubes. The concentration of the solute (salt or sugar) has been higher in them than the concentration of the solute in the solutions that we have tested them in. Nonetheless, some solutions have been a closer match to the osmolarity of the potato tubes than others, such as 0.6 (M per mL) which has caused the tissue to lose -3.6% of its weigh only, compared to 1.0 (M per mL), which has caused the potato to lose -36.6% of its weight. Therefore, the net movement of water in the solutions that displayed a bigger loss in the weight of potatoes has been higher than solutions where the potatoes have only lost a small amount of their weight. This indicates the bigger the weight loss in the mass of the potato, the bigger the difference between the two concentrations of the potato and the solution that it is soaked
Firstly, the width of the potatoes might not be all the same as they were cut imprecisely, so there might be a random error because not following standard width, which should be constituted at 1-2 mm thick. Secondly, not enough experiments with different independent variables. Experiment under the same independent variable was only conducted one times. Thirdly, the electronic mass kept on changing from 2.0-2.6 g. Human errors in observing the osmosis, pH of the potato slices such as touching potatoes and a small number of trials, which may have led to unreliable results. One of the important weaknesses of the experiment was unstable time periods with watch glass such as not removing the potato slices or Visking tube at the same time.
The mass of the before the experiment was ranged from 8.520 g to 18.46g. The weight between each of the potato was different because our goal was to find the percent change in mass, which made the mass of the potato don’t have to be the same. The mass after the experiment was ranged from 7.280g to 15.05g. We could tell the solution concentration in 0.0M, and 0.2M make the potato’s mass increased which making the potato hypotonic. The mass decreased in the solutions of 0.4M, 0.6M, 0.8M, and 1M making them hypertonic.
Pollination is required by the bees and a pesticide that is less harmful to bees, but is also effective at protecting other fruit and vegetable, needs to be created. Secondly, there needs to be a reduction in the human activities that cause stress to honey bees. One way to solve the stress of human activities is to create bee habitats that are located in isolated areas from human activity. These should still be privately- owned and operated, but function so that the bees are removed from harmful activities. Finally, the third cause for the Bee Colony Collapse Disorder is the small beetle that is invading the bee colonies and killing the bees.
Plasmolysis takes place as the cell loses water. Whereas if the piece of potato were put into a solution that has a low concentration of sucrose then the potato piece would increase in mass because the water is moving into the cell, which means the water is moving from a higher concentration (solution) to a lower concentration (cell). The cell is hypertonic and the solution is hypotonic. If the potato piece were put into a solution that was of an accurate concentration (which means that it was neither concentrated nor dilute) then the potato slice would neither gain nor lose mass because the concentration of water and the solute (sucrose) is equal in both the cell and solution. Both, the cell and the solution are
Enzymes function slowly in lower pH like in the pH of 1 or 2. Potato are high catalase when is being placed in a pH of 2 solution and hydrogen peroxide is added to it there will be some fizzing but not a good one. If the potato is placed in a pH of 13 and hydrogen peroxide is added there wouldn?t be any fizzing or little fizzing meaning that high pH either denature the catalase or substrate can not bind to the active site of an enzymes because its changes its shape. A potato piece in pH7 will work very well in hydrogen
This is how the results made sense. The weather might have been colder for the first two trials so not as many ants showed up. This could be an extraneous variable. An additional possible extraneous variable could have been the chalk that was used to put the foods in. In the observations, some ants were seen coming up to the food, but stopping when it got to the chalk.
Consequently, the potato's weight will diminish. A solution where the sucrose is equivalent to the potential of water is called an isotonic solution. Variables Independent: The sucrose solution's concentration where the potatoes are to be placed. Dependent: The alterations of the weight in grams that take place in the potatoes prior to and posterior to the
However, they are different because “Eat Your Bugs” says that they have exactly the right amount of bugs and “Insect Farmers” say that they need more bugs to feed everyone. Another difference is that they don’t want to transport bugs for many different