As we did this with the water the weight of the egg went up because the water soaked into the egg and made it heavier. With the syrup it seeped into the egg and made it weigh less because the sugar in it would dry out the egg and make it weigh less. It done this because it wants equilibrium and that is where there is the same amount of water on each side of the plasma membrane, so it dried up the water to make all the water in the cup the same.
This would have made the results less accurate and made any errors change the final results even more. To make sure this doesn’t happen, there needs to be more trials to increase the precision of the results. Abstract The purpose of the lab was to determine what each of nice substances was based upon how they reacted with other chemicals as well as their pH levels. By using the given clues, the reaction with Litmus paper, and the precipitates formed by different mixtures, the chemicals were identified. Substance 1 was found to be BaCl , substance 2 was determined to be NaOH, and substance 3 was labeled as CuSO .
As mentioned earlier, the egg’s mass changed prior to the substance it was soaked in. This experiment was able to show the effects of osmosis where the egg was both depleted and expanded due to the diffusion of the water molecules. The egg’s change in mass depended on whether the solution of the substance was either hypotonic, hypertonic, or isotonic.
The reason this experiment was performed was to see what surfactant does and really is. As said by Mallinath Chakraborty, “Pulmonary surfactant is a complex mixture of specific lipids, proteins and carbohydrates, which is produced in the lungs by type II alveolar epithelial cells. The mixture is surface active and acts to decrease surface tension at the air–liquid interface of the alveoli.” Within our respiratory system our lungs have alveoli which contain a surfactant that help with water. Without the surfactant in the alveoli the lungs will collapse with water, you would basically suffocate by the water in your body without the alveoli producing the surfactant. Therefore, we conducted an experiment with milk varying from whole milk and
If the lab tests results were negative like it was in your case Mrs. Ellsworth, then there is a small amount of white blood cells present in the urine which is normal. If there is a high WBC esterase count and the lab results come back positive, that would mean that there is inflammation in the urinary tract or kidneys. Fortunately, you had no bilirubin present in the urine. Bilirubin is a waste product produced by the liver and it is not present in the urine in normal healthy individuals. Uribilinogen on the other hand is normally present in the urine but in low concentrations, just like you had in your lab
Once iodine was dropped onto the circle labeled “ Saliva”, it transformed into a white/ yellow Colour, due to it granting the starch to break down properly, it transformed white as a result of there being no starch, hence it executed its main action. Once iodine was dropped onto the circle, which was labeled “HCL+ saliva”, was divided into two colours, white and navy blue, this arose because the starch did not get broken down. The enzyme got denatured with the extension of hydrochloric acid of hydrochloric acid. The acid found in hydrochloric acid obtains a low level oh pH (2), causing it not to be broken down, rather to be denatured, confirms amylase can’t continue it’s activity without a particular high amount of acid, (that is found in stomach acid). My hypothesis is incorrect due to the fact that my prediction is
Yara Mneimneh Ms. Nasrin Vali Biology 11 B 9. October. 2016 Osmosis Investigation Introduction Osmosis is the passive movement of water molecules across a selectively permeable membrane, from a region of low solute concentration to a region of high solute concentration. Osmosis is different than diffusion, since the net movement of the water is due to the solute concentration rather than the molecules. In this experiment, two types of solutions will be tested to examine the effect on osmolarity.
The principal objective of this study was to understand how cell membranes are able to store pigments in their intracellular compartments which then prevents the pigments from entering the general cytoplasm using different concentrations of a solution which in this case was detergent (Huber, et al., 2018).Several slices of Beetroot were immersed in water and three different concentrations of Tween 20.It was then hypothesized that Higher concentrations of Tween 20 will increase the cell membrane permeability of Beetroot. The results were not consistent with the hypothesis and it was shown that with different concentrations of the detergent (Tween 20), the cell membrane permeability increased in the control and then followed the hypothesis pattern in the other concentration of the
The Visking tubing is a semipermeable membrane filled up with concentrated sucrose solution. The surface of the semipermeable membrane symbolizes the visking tubes and the mixture demonstrates the cytoplasm. If the Visking tube is absorbed in water, after a period of time, it will be have water inside water, this is because the water molecules can pass through the tubing, while the larger sugar molecules cannot diffuse out from the tubing because the size of sugar molecules do not allow it to go through the tubing. Therefore, this experimentation indicated that the sucrose molecules cannot diffuse from the concentration of the dilute solution, while on the other hand the water molecules diffuse from the dilute solution to the concentrated one. Hypothesis: If the (independent variable) sucrose of the dilute solution is
These conditions may denature the enzyme, decreasing its rate of reaction. A conformational change to the activity site of an enzyme will cause the activity of the enzyme to decline significantly. This is because substrate a change in the conformational of the active site of an enzyme prevents the substrate from binding to the enzyme. Sodium chloride affects the charged interactions interactions between the amino acids of the enzyme, deteriorating the active site of the enzyme. However, the enzyme will only deteriorate if there is a high concentration of sodium chloride and not if S3odium chloride is simply present.
solute concentration is the solution that will be dissolved by the egg. The process that will be tested for the egg is osmosis, which is the diffusion of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute
As a result of being in a narrow container, there was nowhere for the duckweed to seek protection from the constant exposure to light. Duckweed tend to bleach as a result of too much light exposure and prefer to grow on surfaces where they can seek protection from shade (“Growing Duckweed,” 2015). Another error in the experiment was not testing the quality of the water. Tap water was used, as opposed to distilled water that is boiled to remove contaminants and chemicals or purified water that has most harmful substances removed (French, n.d.). An impurity or chemical in the tap water might have contributed to the death of the
The bloating of the lysosome may end up in its rupture which would severely damage the other organelle and ruin their functions. Enzyme replacement therapy affects the lysosomal storage so it will not become too full and rupture by replacing the non working enzymes with fully functional ones. This can be a life of a difference in a patient as they will then develop mostly
For some people, excess sodium leads to fluid retention in the body, and this causes the heart to have to work harder. If your heart has to pump harder, your blood pressure goes up. Excess dietary sodium may also increase your risk for heart failure and stroke. Too much salt could cause impacts on our bones , this could trigger osteoporosis a condition of diminished bone mass and increasingly fragile bone . also our kidneys could be affected too as too much sodium could have a negative impact and gives u a high chance of getting kidney stones .