This can be titrated to determine the number of moles. Once equilibrium hits, the number of moles and weight of the sample can be determined.…
Abstract: Amylase in the body is used to break down polysaccharides into monosaccharides. The monosaccharides are simple sugars that are used to give the body energy. This effect was investigated in an experiment designed to show the breaking down of starch solution. A water bath was used to heat water up to 60oc. Pieces of dialysis tubing were wet and had starch solution put inside.…
Three drops of each liquid were put onto into the spots on the spot plate (with pH paper). 4. The color of the pH paper was noted to determine the pH of each substance. 5. A result of the pH level of each substance was recorded in an observation chart.…
5. Explain how increasing amount of sucrose in food affects sucrase activity. 6. In the results section you were asked if rate of increase of sucrase activity was greater when sucrose concentration went from 2.5 to 7.5 g/l or when it went from 22.5 to 27.5 g/l. Explain why the rate of increase was greater for this range. 7.…
For the second experiment the hypothesis was gelatin was added to water, fresh cold pineapple juice, and fresh hot pineapple juice that all but the hot pineapple juice would turn into Jell-O. For the third experiment the hypothesis was that the pH would not have an effect on the bromelain activity rate. All six of them would turn into Jell-O Procedure One…
Part C: Answer each question related to the experiment. 1. Write your problem from the first page, then answer your problem(question). How will changing the surface of the penny (by adding soap) affected the number of water drops the penny can hold?…
CONCLUSION: Two weeks ago, Soundings XVI performed Lab Experiment Number Two. Lab Experiment Number Two was similar to the previous, Lab Experiment Number One. The prompt was to compare the results of pennies dropped in water, versus the result of pennies being dropped into milk, both at 100 mL. The main purpose of this lab was to further discuss more scientific parts of this lab, such as the surface tension when the cylinder was close to overflowing for both the milk and water. Before performing this lab, my group and I created a hypothesis to reflect upon and to state what we believed would dictate the results.…
A pure substance has been isolated in the laboratory. Based on the two characteristics below, how 22)…
The third question I asked myself was how to estimate the peak of blood alcohol concentration. If the alcohol is drank within a short period of time, this question can be answered by using the first model: t_p1= ln〖k-ln〖k_0 〗 〗/(k-k_0 ) = 1.2217…
The objective of the first problem summary assignment was to compose an essay illustrating the impact of non-coding on gene expression, utilize primary articles to discuss the role of specific non-coding RNA molecules in the transcriptome, and examine the implications of current study on future research. In order to accomplish this, I analyzed and summarized the primary research article by Chen et al., which discussed the role of Malat1 in cellular proliferation and differentiation. Once I developed a general understanding of the purpose, methods, and results of the article I began looking for other papers to supplement the primary source and provide me with a better understanding of the context of the paper. Once I understood the physiological process of…
In this lab we learned the basics of enzymes and how they work. We were able to perform a quantitative assay of the activity of an enzyme in a tissue extract using a spectrophotometer. Also, we had to organize the data that was provided into tables and graphs so we could have the ability to test a few hypotheses. For example, we tested the whether the rate of the reaction was influenced by enzyme concentration, whether the activity of the enzyme was influenced by temperature and also too see if the activity of the enzyme was influenced by the pH of the solution, which you will then see the results on the graphs and charts that I provided. In figure one we show results of the trial run from the enzyme activity where the absorbance was at 500nm.…
Discussion: The specific purpose for this study was to see how enzyme activity would change as there was a change in temperature and pH. Both temperature and pH were hypothesized to have an affect on enzyme activity. Each had an optimal temperature. At this point, the rate of enzyme activity would stop increasing and begin to decrease. For temperature, it was hypothesized that the optimal temperature would be 48°C.…
By using these concepts and techniques, we created a dilution curve to display and understand our data. Procedure1 Materials The materials used in this experiment are whole grain cereal, Sodium Acetate, water, hydrochloric acid, 2-2 Dipyridyl solution, Hydroxylamine-HCl, and D.I. water.…
Data Analysis The scientific question for this experiment is:” Does the amount of baking soda added to vinegar affect the amount of CO2 produced?” “If more baking soda is added to 50mL of vinegar, then more CO2 gas will be produced,” was the hypothesis. The independent variable was the different amounts of baking soda. Therefore, the dependent variable was the amount of CO2 produced.…
The control was the first row for both amylases. At 0 min. neither one had synthesized anything so this served as the starting point. The independent variable was the temperature; this is what was being changed. The dependent variable was the amylase activity; this is what (should have) changed because of the temperature.…