Conclusion:The purpose of this lab is to prepare and purify a fuel, ethanol C2H5OH. We learned to do so by the process of fermentation, and distillation. Over the course of 2-3 weeks, we collected and analyzed the data for this lab. On day 1, we prepared our sugar-yeast solution which contained warm water, sugar, and yeast. With the help of the water, the yeast was then the reactant, then which was activated.
Glycolysis plus the citric acid cycle can convert the carbons of glucose to _________ , storing the energy as ATP, _____________ and ___________. * B. pyruvate, lactic acid, CO2, NADH, FADH2 2. At the end of glycolysis, each molecule of glucose has yielded 2 molecules of _______, 2 molecules of ________, and a net of 2 molecules of _________. * D. pyruvate; NADH; ATP 3. Trematol is a metabolic poison derived from the white snake root.
Do an initial Benedict's test on the 15% glucose/1% starch and the beaker solutions for glucose by putting some of the solution and a roughly equal amount of blue Benedict's solution in a test tube, placing the test tube in boiling water for 90 seconds, and observing whether or not the solution changes color from blue. 3. Form a bag out of dialysis tubing by tying off one end, putting in enough 15% glucose/1% starch solution to fill it halfway, and tying off the other end leaving the other half of the bag void of anything (even air). Write down the solution's color. 4.
4. Next, the biochemical reactions tests are performed. Inoculated three Durham tubes of phenol red broth with unknown bacteria, each containing a carbohydrate- sucrose, glucose, and lactose as a substrate. Incubated at 37 degrees for 24 hrs. Colorimetric changes are used to observe fermentation and bubbles tube to check for gas.
The Calvin cycle is anabolic, building carbohydrates from smaller molecules and consuming energy. Carbon enters the Calvin cycle in the form of CO2 and leaves in the form of sugars. The cycle spends ATP as energy source and consumes NADPH as a reducing power for adding high energy. The Calvin cycle has 3 phases it undergoes while occurring phase 1 is the carbon fixation, the Calvin cycle incorporates each CO2 molecule one at a time by attaching to its five carbon sugar name RuBP carboxylase, or rubisco the product of this reaction is a six carbon intermediate so unstable that it immediately splits in half forming two molecules of 3 phosphoglycerate, the next phase is Reduction Each molecule receives an additional phosphate group from ATP, becoming 1, 3-biphosphoglycerate. Next a pair of electrons are donated from NADPH reduces 1, 3-bisphosphoglycerate which also loses a phosphate group, becoming G3P.
C6 H12 O6 = 2C3 H6 O3 + 2ATP (lactate) This is a structure of ATP ATP contains sugar which is Ribose, a base which is Adenine and three phosphate groups. Biological systems transfer the energy in glucose to ATP because unlike glucose ATP releases its energy instantly in a single reaction and also the hydrolysis of ATP releases a small amount of energy, ideal for fuelling reactions in the body. Glucose is obtained from food; we eat pasta which is a carbohydrate which is then broken down into glucose by the digestive system. The process which breaks this down is known as catabolism, this is the breakdown of food components, breaking down
Solutions: distilled water, 40% glucose solution, 10% NaCl solution and 40% sucrose solution. Also we had equipment and supplies for Benedict’s test and AgNO3 test, such as Benedict’s solution, silver nitrate and beaker with boiling water. 1. Previously number marked beakers half feel with distilled water except #2, which has to be filled with 40% glucose solution. 2.
Glucose is split into two molecules called pyruvate and two ATP molecules are generated per molecule of glucose as well as two molecules of NADH. Also Glucose takes place in the cytoplasm of the cell. Glycolysis can occur with or without oxygen. Without oxygen it is called fermentation with oxygen it is the first stage of the cellular respiration. • What is the role of the citric acid cycle?
b) What is the molar concentration (molarity) of ethanol in the wine? Chem 131 Solution Stoichiometry and Gas Law Problems Page 1 Problem 3 As part of some research for the product Alka-Seltzer, a researcher combines 0.840g sodium bicarbonate with 100.0 mL of 0.0500 M citric acid (H3C6H5O7). a) Write the molecular, complete ionic, and net ionic equations for this reaction (assume that each molecule of citric acid is completely neutralized). b) If the dry gas that the student actually collects occupies a volume of 0.196 L at 25°C and 1.00 atm pressure, what is the percentage yield of this reaction? c) The researcher
Burning Fuels Investigation Aim: I will be carrying out an investigation, which allows me to calculate and compare how much energy/fuel is used to raise 100cm3 of water to 20 °C. I will be using 5 different fuels; Butanol, Pentanol, Propanol, Methanol and Ethanol. The aim is to find out how much energy is produced when burning these alcohols. Alcohol's react with oxygen in the air to form water and carbon dioxide. This is an exothermic reaction, meaning that when energy is put in, more energy is given off.