Sucrose

certain macromolecules made by cells by detecting carbohydrates, lipids and proteins with four different indicators. Materials Test tubes Test tube rack Benedict's solution Iodine Biuret reagent White paper Hot water bath Vegetable oil Glucose Sucrose Starch Protein Distilled water Post-lab questions A positive test for starch would be with iodine, because the starch turned black and opaque after the test and is the only substance out of the six to drastically change colour. Also the starch…

have different solubility even if they look similar. Materials: Equipment Chemicals Test Tubes (4) Water (H2O) Test Tube Rack Calcium Carbonate (CaCO3) Scoopula Candle Wax (CnH2n+2) (Paraffin Wax) Beakers Sodium Chloride (NaCI) Safety Goggles Sucrose Procedure: All equipment and…

oil separating after two minutes. However after the first few minutes the separation rate stabilized, and continued to stay at five milliliters from five minutes to the end mark of fifteen minutes. Sucrose Time (in minutes) mL of oil 0 4 2 10 5 10 10 10 15 10 The first emulsifier tested was sucrose, which was added to the emulsion and then shaken. The emulsion never completely mixed while shaking, resulting in four milliliters of oil being separated from the emulsion directly after shaking.…

Carbohydrate Utilization: Materials: - Phenol red lactose Broth - Phenol Red Sucrose Broth - Unknown organism # 40 - Inoculating tool Procedure: Phenol red lactose and Phenol Sucrose were cultures used to identify fermentation of carbohydrates for the unknown organism #40. Phenol red is a ph. indicator as the inverted Durham tube indicates gas production. The unknown organism was inoculated into each phenol red broth with either sucrose or lactose. The inoculating tool was sterilized by heat…

Experiment #6: Polarimetry Resolution of (∓)-Racemate: (∓)-ɑ-Phenylethylamine OBJECTIVE All chiral molecules have a mirror image of themselves. While they have the same physical properties, they interact with other chiral molecules completely different. Since there are many chiral molecules in organics, this can lead to the need to make optically pure products. If the chemist does not, it can lead to many problems including death. In this experiment, the separation of two enantiomers was…

Optimal Foraging Strategies of Camponotus pennsylvanicus Hypothesis 1.) Ants prefer food sources of a higher quality rather than of a lower quality. 2.) Ants are sensitive to foraging gains and predation risks. Predictions 1.) Ants will prefer to forage for sugar water that is highly concentrated rather than water that is less concentrated. 2.) Ants will prefer to forage close to their home net site rather than farther away from their home nest site. 3.) Ants will balance the trade-off…

2. Fill a plastic cup with distilled water. Put a piece of dialysis tubing in the water. Leave the tubing in for at least 30 seconds. 3. Label your three pipettes: 20% sucrose, 40% sucrose and distilled water. Next, label a cup with the name of Solution A for Experiment 1 (see chart above). 4. Add 150 ml of Solution A to the labeled cup. 5. Remove the dialysis tubing from the water, and gently roll one end of the tubing until…

Identification of Unknown Carbohydrates Using Various Biochemical Techniques Practical Assessment LO1 Introduction: The experiment conducted involved subjecting six samples of unknown carbohydrates to different methods of identification, this is involved several reagents including Benedict’s reagent, Barfoed’s reagent and iodine solution, these reagents provided the investigation with credible and accurate results as the reagents stated above give good indicative results to the types of…

Monarch butterflies are bright orange with black and white markings on its wings. Males and females can be differentiated based on observing their hind wings; while males have a black spot at the center of each hind wing, females do not. These wings give males a selective advantage; they are able to attract female mates. Similar to migrating birds, the monarch butterflies use the clear benefit of updrafts of warm air, called “thermals” and glide as they migrate, to preserve the energy required…

FDE 310 Food Materials Laboratory Report Determination of Reducing Sugar Content INTRODUCTION The objectives of this experiment is to determine reducing sugar content of food sample by performing Fehling method and to identify invert sugar content of sugars by using polarimetry and also to learn property of invert and reducing sugar. Carbohydrases represent a large class…