Soil pH

Practical 3: Enzyme Activity (2.5) Research Question: How does the change of pH affect the rate of decomposition of hydrogen peroxide on the enzyme, catalase? Background Information: Enzymes are globular proteins, which are synthesised by cells in order to perform specific functions. These act as catalysts in chemical reactions and are considered a major factor in an organism as these reaction rates are required to be shortened in order to support life. Catalase is one of the most…

into an equation (Deb Smith, 2006). Equation 2 The presence of H3O+ directly affects the pH reading. This reaction…

Emily Melendez January 31, 2017 BSC2010 Enzyme I: pH and Temperature Lab Report Introduction: (2008, November 11). Without Enzyme, Biological Reaction Essential To Life Takes 2.3 Billion Years. Retrieved January 31, 2017. The basic concept that is being explored are about enzymes. Enzymes are proteins that are known for being sparkplugs in a chemical reaction. Enzymes have a shape and for them to ‘spark’ they must have the proper substrate for it to work U. This does not change the enzyme’s…

22 tons per day. Scientist thought it was it good thing because it wasn't warming the planet but instead it's killing marine life and endangering them. The ocean water is losing pH since its process that keeps pH balanced it's fast enough. We keep putting more CO2 in the air and the ocean is taking it all in. Since the pH levels…

What is biodiversity? Introduction Biodiversity is defined as the variety of life on Earth at all its levels and includes genes to ecosystems, as well as the ecological and evolutionary processes that sustain it (Cardinale, 2012). The Earth’s biodiversity has long been a source of wonderment and scientific curiosity, but is increasingly becoming a source of concern. The sheer diversity of life is of inestimable value. Biodiversity has a number of functions on Earth, from providing a foundation…

changes color when a solution reaches a pH of around eight, or in other words the endpoint of a solution. It also allows us to see a physical change, thus resulting in a more accurate measure of how much was titrated. Citric acid is a weak acid, making it best titrated by using a strong base, such as sodium hydroxide. The combination of a weak acid and a strong base would result in an endpoint that corresponds to the range of phenolphthalein indicator approximately a pH of eight. Image A…

The Origin Problem Since the time of Darwin, naturalists have attempted to explain how life formed through purely natural causes. Some naturalist models argued that either DNA or a protein provided the first possibility for life. However, problems with these models became evident as the researcher’s knowledge of DNA grew. The researchers discovered DNA relies on proteins for transcription and translation, but functional proteins cannot form without the information stored in DNA. The solution…

of corn oil was found to be 0.928 g/cm3 (Hodgman 1924). From these evidences, water shows that it has the highest density among three liquid. Overall, this experiment supported our hypothesis. Water was found to have good solvent abilities, neutral PH, high heat capacity, high surface tension; water was also found to be cohesive, adhesive, and denser. Some of these properties were not found on corn oil and ethanol, so it was supported that water is different from other…

This paper describes the process by which a three-component mixture was separated and identified. The mixture was separated with the aid of a separatory funnel and various solvents acids and bases. The compound was found to be comprised of meta-nitroaniline, naphthalene, and benzoic acid / 2-napthol. All three of them are organic compounds with melting points in the order they were listed 111-114, 79-82 and 121-122/121-123 °C. the percent yield of each component was also calculated at the end…

ENVM COMPREHENSIVE EXAM RISK MANAGEMENT 10/19/17 NAME: Sheetal M Patel STUDENT NUMBER: 540249 ENVM 665 Risk Management: Question 1 What are the two major general types of chemical sources that result in human exposure to those chemicals and provide a simplified “total” human exposure model showing the pathways that determine the total human dose from those chemicals. The total Human exposure model Source: http://exposurescience.org/a-total-human-exposure-model-them Chemical sources Lead…