The purpose of this experiment is to conduct genetics studies using drosophila fly as the test organism. Scientists can study the basic biology that is shared by all organisms using a model organism, such as drosophila fly1. Drosophila fly, or more commonly known as fruit fly, has several qualities that makes it well suited for experimental genetics cross. First, fruit flies are low maintenance organisms. They are small in size (few millimeters long), so they occupy a small space and a lot of them can fit in one vial at the same time. They only require a media to feed on. In this lab, instant media was used, which is efficient as it only requires the addition of water to be used. This media contains ingredients that the fruit fly can feed one,
...is for this experiment is: “If you increase the amount of drops of bleach mixed into a blue dye solution, then the total amount of time for the blue dye in the solution to disappear will decrease.” In other words, I think that the blue dye in the solution will disappear faster when you increase the amount of bleach. The research that I gathered helped me understand better of why and how I am going to do my experiments in the way I am doing them. It also supports my hypothesis. It supports my hypothesis because I found out that there is an active ingredient in bleach known as the hypochlorite molecule. This molecule helps break the bonds in pigment molecules so I think that the more bleach used, the faster the bonds will break apart. In this experiment, I will be finding out how much dye are mixed in sports drinks and what is the reaction rate of bleach and blue dye.
... maximum decolorization of 97 and 77% was detected for Solar Blue A and Solar Flavine 5G at and temperature 50ºC and pH 4 respectively. They observed that by increasing incubation time and enzyme units, the % decolourization also enhanced. H2O2 dose of 0.7mM for Salar Flavin 5G and 0.8mM for Solar Blue A was enough for the dye degradation.
After five the test tube was removed and cooled to room temperature. Three more test tubes were obtained and labeled 1, 2, and 3. The correct reagent was added to each test tube as seen. The spectrophotometer was adjusted
I used Cheerios, distilled water, and a pestle and mortar. I ground the Cheerios until they had a fine, sand-like texture and consistency. I then added distilled water and mixed until I was left with a thin, runny solution, that was beige in color. Once I had the stock solution made, I was able to perform my first experiment, beginning with Benedict’s reagent. For this experiment I used a hot plate, beaker, and three test tubes, one labeled + (positive control), - (negative control), and Cheerios. Two milliliters of each solution was then added to the tubes they were labeled to go into. In this experiment, the positive control was a glucose solution. I then added two milliliters of Benedict’s reagent to each tube. Once a boiling bath had been made using water, the beaker, and the hot plate, each of the three test tubes were places, sitting upwards, into the boiling bath. A timer was set for three minutes, and I recorded the color
My hypothesis for this experiment is that the heat study tube will turn blue, the cooling study tube will turn green, the dehydration study tube will turn blue, the hydration study tube will turn green, and the common ion effect study tube will turn blue.
Trial 5 was the last trial performed on the first day of the experiment. In the period between the next lab session, chemiluminescence and luminol were researched, with findings encouraging the use of distilled water as a solvent and hydrogen peroxide or bleach as a reagent, with the reagents also dissolved in the distilled water.
Ashburner M. Drosophila A Laboratory Handbook. Cold Spring Harbor (NY): Cold Spring Harbor Laboratory Press; 1989. 1331 p.
Humans transport things around the world just like the cell membrane. The cell membrane uses active transport which uses energy to move thing around. It also uses passive transport that doesn’t require energy at all to move molecules. In order for things to move around in the cell membrane, it needs the cell transport. The cell membrane won’t be a membrane without cell transport.
Experiment I (Parts 1 & 2) I. Question and Hypothesis In parts 1 and 2 of experiment I, the main goal was to prepare a cell homogenate from broccoli florets and determine which cell fraction had the most electron transport chain activity. Electron transport activity could be determined by the cell fraction with the largest number of chloroplast, which was indicated by the artificial electron acceptor called DCIP. This artificial acceptor can be read using a Spectronic 20 to measure the absorbance of a cell fraction.