Starch

either be made up of starch or glycogen. The final test consist of determining whether the solutions contain proteins. This is done by adding a drop of NaOH, and then 5 drops of CuSO4. If the solutions change colour to violet, then; a reaction has occurred and it will indicate us that there is protein. Addition to that, we will also look for the positive and negative controls of this experiment. We are using solutions that we know will form a reaction, such as; protein, starch and glucose. A positive

concentration of salivary amylase to the amount of time it took to break down starch. To determine if varying concentrations affected the reaction time of the breakdown of starch, we used 4 different dilutions of salivary amylase and used 2 controls (positive/negative). Amylase is an enzyme responsible for breaking down starch into sugars. It is hypothesized that a lower concentration of amylase would cause the breakdown of starch to take a longer period of time or a slower reaction rate as opposed to

honey, egg, saltine, and hamburger. We tested sugars using Benedicts solution and boiling water. We tested for starch using Lugol’s solution. We tested lipids using paper towls. Lastly, we tested proteins using Biuret’s reagent solution. The purpose of this lab was to test and see if honey, egg, saltine, and hamburger where either positive or negative for sugar, starch, lipids, or proteins. What I know about scientific concepts is a law that explains why something happens. An example

carbohydrates such as starch are broken and how enzymes, in this case being amylase, help digest food to allow it to diffuse across a membrane. As a result, the experiment will provide data as to whether starch, after being broken down into glucose, can move across the membrane. as well as supporting

REVIEW THE PRODUCTION OF NAMED ANTIBIOTIC, NOTING BIOTECHNOLOGICAL INNOVATION THAT IMPROVE ASPECTS OF THE PROCESS Introduction Platensimycin (PTM), a metabolite of Streptomyces platensis, is an exceptional example of a distinctive structural class of natural antibiotics and have been shown to be a breakthrough in current antibiotic research due to its characteristic functional pattern and important antibacterial activity. PTM mode of action is not exploited by current drugs which makes it an important

In this lab, we will use simple indicators to test for the presence of organic molecules. This will be done by using different compounds, indicator solutions. These indicator solutions include Benedict’s solution, Biuret’s solution, Ninhydrin, Iodine, and Amylase. Benedict’s solution is used to detect the presence of sugars, whether they are a monosaccharide or disaccharide. The resting substance is a blue color until it reacts, turning either a yellow, orange, red, or green color, indicating it’s

The purpose of this laboratory exercise was to perform tests necessary to be able to distinguish one microorganism from 10 others. Using a series of biochemical tests and characteristics, unknown #22 was concluded to be Pseudomonas aeruginosa. A dichotomous key was mapped out and used during this process. Using this provided guidance as well as organization as to what the result may be. Upon obtaining the unknown organism, it was important to make a streak plate of the bacteria on TSA. The purpose

control because it can’t make any result change. Material • Six large test tube • Benedict’s regeart • One pipette • Wax pencil • Boiling water bath • Text tube holder • 10 Ml pipette • Unknown solution • Starch suspension • Glucose

Practical 3 Investigation of Action of Saliva and Hydrochloric Acid in Two Carbohydrate Solution | Objective: 1. To show the action of saliva in two carbohydrate solutions. 2. To show the action of hydrochloric acid in two carbohydrate solutions. Apparatus & Equipment’s: Boiling tubes Metal test tube racks Beaker Graduated plastic dropper Water bath,~37°C Water bath,~95°C Stop watch

used to determine which solutions caused the potato pieces to be isotonic, hypotonic, or hypertonic. Materials and Methods: In the osmosis and diffusion portion of the lab a 6 inch dialysis tubing was tied off on one end, filled with 20mL of potato starch, and then tied off at the other end. Then a 500mL beaker was filled with 300mL of water and 50