Properties of Enzymes: Peroxidase, A Case Study Objectives Name the class of macromolecules to which peroxidase belongs and the monomers that make it up. Name the substrates and products of the peroxidase catalyzed reaction. Explain the role of guaiacol in this experiment. Define enzyme, activation energy, active site, pH, and denaturation. Distinguish between oxidation/reduction, activation energy/catalysis, substrate/product, and hydrogen peroxide/peroxidase.
Since they’re both a six sided sugar, lactase can only break down lactose. Lactose is the sugar found in milk, and sucrose is an ordinary table sugar. Sucrose is a disaccharide composed of glucose and fructose. Fructose is a five sided sugar, so lactase cannot break down sucrose. Temperature and pH are two environmental factors that will be used in the second part of the lab.
Reabsorption in the main sites of the Kidneys. Reabsorption in the proximal Convoluted tubule (PCT) The PCT is the main site of reabsorption it is here that most of the materials will be reabsorbed into the blood. The materials are not directly absorbed straight into the blood first the move through the cells of the PCT and taken into the interstitial fluid.From here the molecules will diffuse into the blood through capillaries. The molecules that are reabsorbed are glucose, water Na+ and amino acids. All of the glucose and amino acids are reabsorbed at this site as well as around 85% of mineral ions.
Sharena Thibodeaux Biology 112 M-11am Class By Sharena Thibodeaux Biology 112 M-11am Class By Osmosis and Diffusion Osmosis and Diffusion Introduction Diffusion is the passive transport of individual molecules from higher concentration to lower concentration. Without extra forces, the molecules will travel down its concentration gradient. The more concentrated a molecule is, the faster it will diffuse to the lesser concentrated region. Therefore, a diffusion rate can be calculated according to the amount of molecules in a specific solution or medium. Each molecule moves independently of others, the movement is random, and there is no use of energy in the process whatsoever.
1. Most organisms are active in a limited temperature range Identify the role of enzymes in metabolism, describe their chemical composition and use a specific model to describe their specificity on substrates Molecules: Consist of atoms Enzymes: Break the molecule bonds, but need energy to do so – ACTIVATION ENERGY (required to start chemical reaction) 1. The role of enzymes in metabolism 1. Metabolism refers to all the chemical reactions occurring in organisms 2. Enzymes are biological catalysts for all processes going on inside cells.
Amino Acids What is an enzyme and how does it work? An enzyme is a protein that acts as a catalyst to speed up a chemical reaction. There is a unique activation site on each enzyme, which has a specific shape. This shape enables the enzyme to “fit” with certain substrates. When the enzyme binds with its specific substrate, new products form but the enzyme remains unchanged.
Remember that glycolysis does not require oxygen. The process does not make a lot of ATP, only 2 ATP molecules are made for every glucose molecule broken down. Just like your muscle cells when they are oxygen starved, red blood cells then use lactic acid fermentation to allow glycolysis to
The sugar donor for GT5 is ADP – glucose and is unregulated, which means they do not require phosphorylation and ligand binding (Wikipedia, 2011). This essay will cover the function and structure of glycogen synthase and the relationship between the two different areas. Function of Glycogen synthase Glycogen synthase plays a key role biologically in controlling glucose and glycogen levels. It is triggered by the enzyme phosphorylation. In people, glycogen synthase has two paralogous isozymes (Wikipedia, 2011).
The easiest way to treat dehydration is to simply drink lots of water, however this takes time and in extreme cases you would have to be treated with an IV. When being treated with an IV you receive fluids directly into your blood stream this allows your body to recover faster and more efficiently. You also need to keep your body from losing water during this rehabilitation process, which means you need to stop doing whatever activity caused you to become dehydrated in the first place while you receive treatment, usually in the shade if you are outside or in more severe cases a climate controlled environment like a
The lymphatic system filters out organisms that cause disease, produces certain white blood cells and generates antibodies. It is also important for the distribution of fluids and nutrients in the body, because it drains excess fluids and protein so that tissues do not swell up. "Lymph" is a milky body fluid that contains a type of white blood cells, called "lymphocytes," along with proteins and fats. Lymph seeps outside the blood vessels in spaces of body tissues and is stored in the "lymphatic" system to flow back into the bloodstream. Through the flow of blood in and out of arteries, and into the veins, and through the lymph nodes and into the lymph, the body is able to eliminate the products of cellular breakdown and bacterial invasion.