Vinegar, Antacid, and Soap all became positive solutions after I put in the enzyme. A change in pH disrupts an enzyme's shape and structure. pH measure acidity--water is neutral and has a pH of 7. When the pH changes an enzyme's structure, the enzyme can't do its job. Changes in pH break the delicate bonds that maintain an enzyme's shape.
Aldolase B is considered the chief aldolase isoenzyme that is responsible for fructose metabolism and gluconeogenesis within the liver. This is turn, produces fructose 1,6-biphosphate from the glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. When fructose is ingested, the body cannot change its energy storage substance glycogen to glucose. When glucose builds up in the liver, the blood sugar falls resulting in hypoglycemia. (PubmedHealth, 2009) Fructose 1 phosphate which is the substrate of Aldolase B is split by Aldolase.
Glucose travels in the plasma or liquid part of your blood but cholesterol (triglycerides) travel bound to protein carriers in the blood. Based on their respective chemical properties, explain the reason for this difference. (2 marks) Cholesterol is an amphipathic molecule, since it has polar and non – polar regions. Even though the cholesterol has polar group (OH) it dissolves fats than in aqueous
Cholesterol also makes the membrane less fluid by restraining the movement of phospholipids and lowers the temperature required to solidify the membrane. Complete depletion of cholesterol and sphingolipids results in cell death as their presence allows permeability to small molecules such as ions, glucose, and water. How does temperature affect lipid membrane? A membrane remains fluid as the temperature decreases, until it solidifies once it hits a critical temperature. The temperature at which a membrane solidifies depends on its fatty acid composition.
Chemistry PAT Question 1 Polyhydroxybutyrate (PHB) is a biopolymer with properties very similar to that of polypropylene, though has all the benefits that come with biopolymers. PHB was first introduced to the scientific community by the scientist Maurice Lemoigne in 1926. He noticed that to produce PHB you need particular micro-organisms such as Alcaligenes Eutrophus or Bacilius megaterium undergoing physiological stress in an apparatus such as an agar dish to allow the micro-organisms to multiply. In order to achieve this stress there is a restriction to the amount of nitrogen the micro-organisms can attain thereby altering its nutrition. This is quite an efficient method of production and the amount of the PHB polymer yielded is around 30-80% of the dry weight of the micro-organisms used.
Physical factors, usually associated with illness, are the predominant cause of malnutrition in UK adults, although psychosocial issues have significant effects on dietary intake in some groups (e.g. the socially isolated, the bereaved, poor quality diets in low income groups and some older subjects). Since malnutrition both predisposes to disease (Table 7) and is simultaneously an outcome of disease, patients may enter a downward spiral of ill-health due to malnutrition-disease interactions. (NCBI) Muscle function relies primarily on nutrients received through nutritious foods and vitamins. A loss of fat and muscle mass is commonly the biggest sign of malnutrition.
Aasir Osman Enzyme Investigation - Effects of pH on the Activity of Catalase Aim: The aim of this investigation is to determine the effect of the inhibitor which is pH, on the enzyme catalase, which can be obtained from potatoes. *************8 Introduction: Enzymes are proteins that catalyse the speed of biochemical reactions in the body. They are responsible for all metabolic functions and are absolutely vital for life itself. Without enzymes, reactions would take place too slowly to keep you alive. These proteins are highly specific regarding what they do and under what conditions they do it in.
When these factors vary, enzymes may change in shape so it will not be able to bond to the specific substance anymore. What is trypsin? Trypsin is produced in the pancreas as typsinogen originally allowing metabolic control. It is used widely in various biotechnological processes because it is very easy to be purified. Method: Material: • Trypsin • Casein • Water bath (to keep the temperature constant) • Colorimeter (to measure the rate of enzyme activity) • Thermometer • Test Tubes (to contain the casein and the buffer solution) • Stop watch (to control and measure the time) • Distilled water (to mix with trypsin to produce the buffer solution) • Test tube rack (to prevent the tubes rolling and smashing) Protocol: • Put 2.5 cm³ of 5% with reconstituted casein in 6 of the test
Renal Function Tests Background: Kidney function tests are common lab tests used to evaluate how well the kidneys are working. Renal tests can show how quickly body wastes are being removed and whether the kidneys are also leaking abnormal amounts of protein. In this practical serum creatinine, serum urea and urinary protein have been investigated. Creatinine is a breakdown product of creatine, an important component of muscle. The production of creatinine depends on muscle mass, which varies very little.
Cataracts occur at the early stages of the diabetes. It causes “clouding of the vision” (Risérus & Willett, 2009, p. 50). Glaucoma is a result of poor fluid drainage from the eyes’ tissues. This may lead to pressure build up and therefore damaging the eyes’ nerves. Nerve damage causes