Final Solution

My past experiences working in groups through Liberty University and through other schools has been positive to a certain extent, but group projects always add a certain amount of stress. There are a few groups that have been fantastic and a few groups which have had lagging group members which make it difficult. I would say that my personality type is extremely laid back, but I also like for things to get done because, at this level, good grades are essential. A few annoyances that I have…

FOLLOWING HIS DEATH, Senator Donald Welt was sure of one thing, he was dead. That much he knew for certain. But there were other things he didn’t know of course. The small things, the details. Who had shot him? Why had they shot him? What was next? That final question seemed most pressing for the time being, a question he claimed to know the answer to throughout his entire political career. It’s so easy for the living to talk about death, but for the dead it was no laughing matter. It was a…

I was able to look over two boxes, Box 68, and Box 412. Box 68 was under the professional file 1897-1995.The container or box has nine folders. Within the box it contained miscellany 1949-1966,press releases,1951-1957,printed matter 1949-1967 and also a report by Clark “Present Threat to Children and Youth 1957” .That was inside folder six of box 68. The report was written May 31, 1957 and drafted by Dr. Kenneth B. Clark. Clark reported that the major threat to the welfare and creative…

Hypothesis: Our reagent, Malonate, is an inhibitor of the mitochondrial enzyme Succinate Dehydrogenase (SDH) that will bind to the active site of the enzyme and result in a decrease of enzyme activity. Justification: Any agent that interferes with enzyme activity is an inhibitor. Inhibitors can affect the catalysis and/or the binding of enzymes to substrate. Malonate is an inhibitor of SDH primarily because of its shape and function, as the shape is similar to that of succinate (Clark, 2009).…

During this experiment slices of a potato were placed into beakers containing salt solutions with different concentrations. How will the percentage of salt concentration in solution affect a plant cells water content? This experiment will determine which salt solution concentrate will cause the potato cells to absorb water or lose water. Tonicity in plant cells is important. A plant cell exposed to a hypertonic solution would become shriveled due to water leaving the cell. People have been…

hypotonic osmosis occurs. The concentration of the solution outside of the potato cells was higher than the concentration inside the potato. This caused the transportation of the solution towards the lower gradient. The solutions 0.40mol/L, 0.60 mol/L, 0.80 mol/L, 1.0mol/L lost mass after diffusion. This is due to there being a higher concentration inside of the potato cells than in the glucose solution. The transport went to the glucose solution outside of the potato, which made it…

concentrations of water to low concentrations of water through a selectively permeable membrane. Osmosis is a way for water molecules to create equilibrium between a cell and its environment. For example, if the cell is a hypotonic solution and its environment is a hypertonic solution, then water will naturally diffuse to its environment to create equilibrium. The guiding question for this experiment was, “How does alcohol concentration affect the water content in cells?” It is related to…

experiment, we set out to determine the osmolarity of a potato. In order to do this, we placed potato pieces in seven different solutions of varying sucrose molarity. First, we weighed each potato piece to obtain the initial weight, shown in Figure 1. Then, we split the pieces vertically before placing them in the cubs containing the sucrose solutions. In each cup was a solution of sucrose with a molarity ranging from 0.0M to 0.6M. After placing the potatoes in the cups, we allowed them to…

The goal of this lab was to find the molar sucrose concentration at equilibrium. Which is when the potato core and the sucrose solution reach equilibrium, so that no water is entering or leaving the cell. After collecting the data, the line of best fit never crossed the x-axis or showed where the molar sucrose concentration at equilibrium. I had to extrapolated the point at which it crossed the x-axis. This led to the data being unreliable because there is no physical evidence present that…

osmosis, water moves down its concentration gradient from a low solute concentration to a solution with a high solute concentration. In addition, an increase in the mass of the potatoes occurs because the highly concentrated solutions were hypertonic. Potatoes with the greater increase tend to be the sweet potatoes because the potatoes already have sucrose embedded in the substance. When placed in a solution with high sucrose content, the amount of sucrose in the sweet potatoes increases because…