These electrical impulses can be recorded in an ECG (electrocardiogram) and used to detect problems with the heart. Blood * Blood consists of red blood cells, white blood cells and plasma. Red blood cells transport oxygen and carbon dioxide. White blood cells combat inflammation and infection. Plasma, the liquid part of the blood, is mostly water but it also carries antibodies and proteins.
Calculate the mass of water present in 5.00 ml of the solution. DETERMINATION OF THE EQUILIBRIUM CONSTANT FOR THE HYDROLYSIS OF AN ESTER I. Theory: In order to determine the equilibrium constant for a reaction, it is necessary to know the initial concentrations of the reactants and products and to be able to determine the equilibrium concentration of one of the compounds. Using the stoichiometry of the reaction and the change in concentration of that compound, the changes in concentration and the equilibrium concentrations of all the other reactants and products can be determined. From these equilibrium concentrations, the equilibrium constant for the reaction can be determined.
0.9 0.8 0.7 Absorbance 0.6 0.5 0.4 0.3 0.2 0.1 0 400 450 500 550 600 650 700 750 λ max 500 nm 550 nm • • Make sure you understand the directions for using the spectrophotometer and have them written in your manual. Complete the questions on the prelab page. Introduction: There are many different chemical methods that can be used to determine the concentration of a solution. You have already used one method, titration, to find the concentration of Ca+2 ions in a sample of water, and another, density, in finding the concentration of ethanol. In this lab you will use a method called visible spectroscopy to determine the concentration of a solution of CoCl2.
Equipment List * Boiling Tube * 10 cm3 1mol dm-3 Hydrochloric Acid (HCL) * 15 cm3 1mol dm-3 Sodium Hydroxide (NaOH) * pH and Temperature Probes * Data Logger * Measuring Cylinder ‘ * Boiling Tube * Teat Pipette Method * Add 10ml of Hydrochloric acid, measured in a measuring cylinder, into a boiling tube. * Into a data logger, plug in both pH and temperature probes and switch on data logger. * Put in both the probes and measure both the temperature and pH before adding any other substances. * Add 1cm3 of Sodium Hydroxide, measured in a measuring cylinder, to the Hydrochloric acid, and
10% 4. Outline the ‘blood tests’ you would have contemplated collecting given Ron’s presenting complaint and discuss your rationales. 5% Ron has presented with left sided chest pain. Blood tests to be collected include Blood Chemistry, cardiac enzymes and cardiac proteins markers. Blood Chemistry shows the levels of electrolytes, proteins and cholesterol.
I. Objective The purpose of this experiment was to define and understand the meaning of the following terms: acid, base, pH, pH scale, pH indicators, buffer system, acidosis, and alkalosis. To determine the acidic or basic nature and actual pH of various substances. To discuss the formation of the carbonic acid/bicarbonate ion buffer system in the blood. To understand the important role of the carbonic acid/bicarbonate ion buffer system in maintaining homeostasis, especially with regard to ventilation.
BIOS 255 WEEK 5 Lab 5 - Lymphatic System & Disease Resistance 1. Describe lymphatic system functions. The three major functions of the lymphatic system are: 1) It drains excess interstitial fluid from tissue spaces and return it to the blood. 2) It transports lipids and lipid-soluble vitamins absorbed by the gastrointestinal tract. 3) It carries out immune responses directed against particular microbes or abnormal cells.
Introduction: This experiment was executed to determine the concentration 7 different solutions with different concentrations. The solution was part water and part Bovine Serum Albumin (BSA). To determine the concentration, a spectrophotometer was used. The use for a spectrophotometer is to determine the concentration of a liquid using light to determine the absorbency. Materials & Methods: First .5 mls of 2000 µg/ml BSA Standard was obtained in a test tube.
WEEK 9 URINARY SYSTEM AND DERMATOLOGICAL DISORDERS The urinary system, also known as the renal system, consists of the two kidneys, ureters, the bladder, and the urethra. Each kidney consists of millions of functional units called nephrons. The purpose of the renal system is to eliminate wastes from the body, regulate blood volume and pressure, control levels of electrolytes and metabolites, and regulate blood pH. The kidneys have extensive blood supply via the renal arteries which leave the kidneys via the renal vein. Following filtration of blood and further processing, waste (urine) exit the kidney via the ureters, tubes made of smooth muscle fibers that propel urine towards the urinary bladder, where it is stored and subsequently expelled from the body by urination.
Observe the color change. Osmosis: The materials needed for the osmosis experiment include: 1%, 20%, and 40% sucrose solutions, a 100ml beaker, pipettes, 3 dialysis bags/tubing, scales, and weigh boats. The procedure was a follows; Place the 1% sucrose solution into a beaker. Next, fill one dialysis bag with 1% sucrose