Banana Experiment Lab Report

tube was placed inside, then another test tube with an equal amount of substance would be placed

The purpose of this lab is to test substances and to determine the physical and chemical properties of substances.

* By using the dropper and measuring cylinder, 10ml phenolphthalein was added to the test tube

We first started this experiment by obtaining twelve 15ml test tubes, in which we placed in a rack and labeled each with what

Begin by labeling two sets of 7 different 1.5 ml tubes 0 thru 6. Obtain 1 more 1.5 ml tube and label it B for the blank. Obtain 1 sample of 15 μls from each of the serially di-luted tube concentrations and put it in its corresponding 1.5 ml tube. Now add 525 μl of media in each 1.5 ml tube, followed by 60μl of Alamar Blue in each tube. Close the lids of all the tubes and vortex for 5 seconds. In order to make the blank, add 180 μl of media and 20 μl of Alamar Blue in another 1.5ml tube.

Next prepare the third test tube with an accurate measurement of 5ml sodium carbonate once again labelling appropriately.

Replace cuvette 2 into the foil sleeve, and place it into the incubation test tube rack. Turn on the flood light. Take and record additional readings at 5,10,and 15 minutes. Mix the cuvette's contents just prior to each readings. Remember to use cuvette 1 occasionally to check and adjust the spectrophotometer to 100% transmittance.

In order to minimize errors and to "place" the solutions in the same environment, the same volume should be extracted from each solution using the syringes.

1 ml of water should be added to the first test tube and make a note. In the second test tube, 1 ml of methyl alcohol should be added. In the third test tube, 1 ml of hexane must be added. Lastly, the fourth test tube will be a control.

serve the color in a cut avocado, coat the surface with lemon juice or vinegar. Both

Today was the first day that I observed the two bananas. I observed the color, the firmness, and the amount of brown spots on each banana. There was no noticeable smell from either of the bananas.

Add the same amount of Benedict’s solution in each tube and for the ones that need iodine use the same amount.

Measure out one scoop of albumin powder (rich protein) and place it into each individual tube.

Empty and clean the test tubes and repeat steps 2-10 again for a second dataset.

Take 4 ounces of plain sugar-free, nonfat yogurt, 2 cups of chopped fresh strawberries, 1 chopped banana, and 2 teaspoon of peanut butter. Process all ingredients in the blender. Add nonfat milk if you feel it’s too thick.