Glucose tolerance test

Introduction The purpose of this lab is to test different solutions for macromolecules as well as to identify an unknown solution. This experiment used three tests to identify which macromolecules (carbohydrates and proteins) were present in different sample solutions. The tests were the iodine test, Benedict’s test, and the biuret test. To begin, the iodine test was used to identify which solutions contained glycogen or starch. If the solution tested negative, it stayed the yellow colour of the…

1. Explain how an enzyme works, and how a coenzyme or cofactors may be involved in an enzymatic reaction. An enzyme is a type of protein that is produced by living organism, that also speeds up a chemical reaction without actually being involved in the reaction itself. Reactions occur under mild conditions; enzymes also control the metabolism, by taking out nonspecific side reactions. Enzymes catalyze each step of the chemical reactions in a metabolic pathway. In order for this to happen, all…

Cellular Respiration is a cycle that can be found in all living organisms. The significance of Cellular Respiration is that it creates energy by breaking down larger molecules. For instance, the breaking down of a glucose molecule through the Glycolysis cycle. Although, cellular respiration includes both aerobic, with oxygen and anaerobic, without oxygen processes. According to Campbell’s Biology Cellular Respiration is, “[t]he catabolic pathways of aerobic and anaerobic respiration, which break…

then absorbed through the intestinal wall into the blood stream and then moved across to other body cells. This then forms glucose and the disaccharide maltose from the ingested carbohydrates and extensive bond breakage in the carbohydrate. After this the monosaccharides are transported from the small intestine to the liver for further metabolizing. The monosaccharides Glucose, Fructose and Galactose…

which can then be used to power the cell’s functions(5). For example, Palmitic Acid, which was mentioned earlier has more electrons surrounding each Carbon atom than Glucose. The Palmitic Acid has the possibility to undergo many oxidation reactions, each releasing some of its hydrogens as well as its excess electrons. However, Glucose cannot undergo nearly as many oxidation reactions to give off energy as Palmitic acid since the electron density is much less than that of the Lipid. Ultimately,…

starch will keep from diffusing across the membrane. On the contrary, amylase will cause the starch molecules to break apart into smaller molecules of glucose allowing diffusion of glucose and Lugol’s reagent across the dialysis tubing. Null Hypothesis: Adding amylase to the beaker will have no effect on starch molecules and diffusion of the glucose and Lugol’s reagent across the dialysis tubing will not be present. 2.) Protocol Two large beakers, one small beaker, two cut pieces of soaked…

and negative feedback loops. • The hormones, glucagon and insulin, work to manage blood sugar within normal levels and reduce fluctuations. For instance, when blood sugar levels rise, insulin hormones are released from the pancreas to guide these glucose molecules out of the blood stream and into the body’s muscle, adipose, and liver cells, along with most other cells in the body, to be used for energy. • Diabetic ketoacidosis is notorious for the onset of multiple hormonal abnormalities that…

weight) and 44.52% (wet weight). All of components in A. dorsata bee bread are placed in the range given by Compos et al., (2008) (Table 1). Table 1. Detailed composition of A. dorsatabee bread (dried mass). Main components Content (% of dry weight) Test Result Range Result (min-max) (Compos et al., 2008) Proteins 19.96 10 – 40 Lipids 7.80 1 – 13 Fibre 3.28 0.3 – 20 Ash Carbohydrate 5.94 25.60 2 – 6 15-33 Based on the amino acid analysis showed that A. dorsata and T. itama…

Brian Zhao B Format Carbohydrates Station 1 - molecular models Glucose - C6H12O6 Fructose - C6H12O6 Sucrose - C12H22O11 Station 2 - Taste Lab Work 2. Glucose - plain, almost like water Fructose - sweet, like from a fruit Galactose - slight pungent taste Maltose - bitter, bad aftertaste Sucrose - slightly sweet, almost like sugar-water Lactose - plain, again almost like water 3. Fructose was the sugar which tasted the best because it was sweet, and it tasted like an actual sugar. The other…

2.4 Dietetic management 2.4.1 Calories A calorie is the unit used to measure the energy-producing value of food. Theoretically, calorie is characterizes as a unit of heat measurement, in nutrition and the kilocalorie is the amount of heat required to raise the temperature of 1kg water through 1˚c. Another definition is that calorie is a unit of measurement that determines the amount of heat released in a food during metabolism. It states the energy value of a food calorie (cal) or kilocalories…