An extractive reserve is a concept that was produced and formed by Chico Mendes and Mary Helena Allegretti which relate to areas designated for the protection and sustenance of the environment and their inhabitants who practise their customary activities of rubber tapping. Extractive reserves were seen by the rubber tappers to be a solution to…
Introduction In this experiment you will measure the heat capacity of water using an electrical immersion heater. Prediction Throughout this experiment, we predict that the change in temperature compared to the amount of heat added to the water will be constant thus making it proportional. Materials Power supply Immersion heater Connecting wire Thermometer Calorimeter Balance…
Refraction of Light PART I This laboratory was designed to investigate the behaviour of light as it travels through a less dense into a denser medium. Materials Ray Box with comb Semicircular plastic block Procedure Placed the semicircular plastic block on the centre of a blank sheet of paper. Traced its outline and indicated the…
Introduction: An ester is an organic compound that is created from a reaction between an acid and an alcohol, usually with the loss of water. Many esters contain veer distinct odors, which has led to them being used for artificial flavoring and fragrances. Esters can be synthesized artificially in labs by combining alcohols and acids…
Aspirin (originally a legally restricted brand name owned by Bayer for its brand of ace- tylsalicylic acid, but now a generic term) has been in use as an analgesic (pain-killer) and antipyretic (fever-reducer) for over a century. During most of that time, little was known about its mode of action in the body, although this…
The Nobel Prize is an international award that is given yearly for achievements in physics, chemistry, physiology or medicine, and peace which was set up in 1901 by Alfred Nobel with each prize consisting of a medal, personal diploma and prize amount. The prize in economic sciences was instituted in 1968 by the Sveriges Riskbank…
Lately the North American society has been obsessed with bottled water. It has become the fastest growing drink, but many people do not realize that it is just as safe, and much cheaper, to just turn on the tap. Bottled water companies sell their product by taking advantage of consumer concerns about the condition of…
HORMONE GLAND ORIGIN TARGET TISSUE FUNCTION Adrenocorticotropic Pituitary gland (anterior) Adrenal cortex Triggers secretion of hydrocortisone from the adrenal gland Growth hormone Pituitary gland (anterior) Throughout body Stimulates growth and development Follicle-stimulating hormone Pituitary gland (anterior) Sex glands Stimulates female egg maturation and male sperm production Luteinizing hormone Pituitary gland (anterior) Sex glands Stimulates female…
Name of Enzyme Substrate Location Task Products Salivary Amylase (likes pH level of around 6.2-7.4) Amylose in the mouth Saliva which is released from the salivary glands Aid in the hydrolysis of the starch amylose into the disaccharide maltose (glycocidic bond) Maltose, and Amylose Pepsinogen No substrate, inactive form of pepsin Produced in the gastric…
Biographical Information Born on September 6, 1766, in Eaglesfield, Cumberland County, England Son of a Quaker weaver Suffers from colour blindness Was educated at a Quaker school, where he taught at age 12 Moved to Kendal in 1781 to teach at another school Went to Manchester in 1793 to teach at the New College and…
Common Names: Anofex, Cesarex, Chlorophenothane, Dedelo, p, p’-DDT, Dinocide, Didimac, Digmar, ENT 1506, Genitox, Guesapon, Guesarol, Gexarex, Gyron, Hildit, Ixodex, Kopsol, Neocid, OMS 16, Micro DDT 75, Pentachlorin, Rukseam, R50 and Zerdane. Physical Properties of DDT – Created by the reaction of trichloroethanol with chlorobenzene – Stable, Nonflammable, Combustible molecule – Able to perform substitution…
Pests have plagued humanity for as long as history has been kept, leading to many diseases in the process. Many people have tried to fight these pests and diseases, but came up empty. DDT was the world’s first known pesticide and is arguably the world’s most well known. DDT was first synthesized by Othmar Ziedler…
The graph shows three same structured gradual increases in three different areas- from elements 2 to 10, 11 to 18, 31 to 36. As the atomic number increases, the ionization energy slowly decreases. After Elements 2, 10, 18 and 36, the ionization energy level drops by a significant amount. Between elements 20 and 29, the…
Diabetes Mellitus Caused by inadequate secretion of insulin from islet cells in the pancreas Less insulin means blood sugar level tends to rise Cells of proximal tubule are supplied with enough ATP to reabsorb .1 % blood sugar, but with disease much higher blood sugar concentrations are found with the excess sugar remaining in the…
Purpose: To see if starch is present in different mediums Materials: – White paper – Popcorn – Plain Cheerios – Crackers – Rice – Unknown substances A, B, C, D, E Apparatus: – Petri dish – Iodine – Dropper – White paper Method: A small piece of white paper was ripped off and one…
What is diabetes insipidus? Diabetes insipidus (DI) is an endocrine disorder involving deficient production or lack of effective action of an antidiuretic hormone (ADH or vasopressin). ADH is made in the hypothalamus (lower part of the brain), stored in and secreted by the pituitary gland (a small gland located below the hypothalamus), and works on…
Today childhood obesity is the most common nutritional disorder affecting children and teens (Peters, 2009). Obesity is not just being overweight; it can contribute to a risk of strokes, heart disease, type II diabetes, cancers and arthritis (McVeigh, 2009). With over 1.6 million children overweight in Canada, obesity rates in children is climbing at an…
Materials: Lab apron Eye protection Centigram or analytical balance 8-10g or unknown salt Water Thermometer 3 Styrofoam cups (calorimeter) 100 mL cylinder Filter paper Procedure: Safety equipment, including goggles were put on. 8-10g of an unknown salt on a filter paper was obtained from the teacher. The mass of the salt and filter paper were…
An enzyme is described as a biological catalyst that speeds up the rate of a chemical reaction. In order for an enzyme to perform its given job, it needs what is known as a substrate to bind to the active site of the enzyme so that the enzyme can speed up the reaction of the…
Hormones: chemicals released by cells that affect cells in other parts of the body Endocrine Hormones: chemicals secreted by endocrine glands directly to the blood Exocrine glands secret substances through ducts, where as endocrine glands secret directly into the blood The nervous system enables the body to adjust quickly to the environment; the endocrine system…