ELECTRONICS 1A (PHS 206) COURSE CONTENT: 1.ELECTRONS IN MATTER 2.ELECTRON EMISSION INTRODUCTION The Word Electronics derived its name from electrons in all materials. It is a branch of Science‚ Technology and Engineering that deals with current conduction through vacuum‚ gas‚ solidsmatter in general. It deals with electronic device and their utilization. INTRODUCTION contd Electronic device is that in which current flows through a matter. Such devices have valuable properties which enables
Premium Atom
Investigation Into The Effect Of PH On The Activity Of Potato Tissue Catalase Aim The aim of my investigation is to see how pH affects the activity of potato tissue catalase‚ during the decomposition of hydrogen peroxide to produce water and oxygen. Catalase + 2H2O2 Catalase + 2H2O +O2 Catalase + Hydrogen Peroxide Catalase + Water + Oxygen Independent Variable The independent variable in this investigation is pH. Each individual enzyme has it’s own pH characteristic. This
Premium PH Acid Enzyme
Effects of pH‚ Temperature‚ and Concentration on Peroxidase ABSTRACT The purpose of this experiment was to inspect the effect of environmental conditions on hydrogen peroxidase. The three conditions tested were the effect of peroxidase concentration on the rate of the experiment‚ the effect of pH of the rate of peroxidase activity‚ and the effect of temperature on the rate of peroxidase activity. During the lab‚ the lab group tested 7 test tubes‚ including 1 blank‚ with different amounts of pH 5 buffer
Premium Enzyme Oxygen Chemical reaction
For this lab it was necessary to bring a watch with a second hand‚ as well as personal protective gear: lab coat‚ safety goggles‚ and safety gloves. It was best to work in pairs and one partner needed to be a timekeeper while the other one would record the data. The timekeeper then would announce every 5 second interval‚ beginning from when the enzyme was added to the tube. On the other hand‚ the recorder would read and record the absorbance from the spectrometer at the 5 second intervals. This was
Premium Chemistry Enzyme Water
LABORATORY REPORT TITLE : MEASURING pH LEVELS AND WATER ACTIVITY OF FOODS NAME: MATRIC NO: GROUP: 2 DATE OF EXPERIMENTAL WORK: 13 MARCH 2013 DATE OF SUBMISSION: 20 MARCH 2013 TITLE: MEASURING pH LEVELS AND WATER ACTIVITY OF FOODS ACTIVITY 1 Introduction : This experiment was performed to investigate the pH levels of different types of food products. The pH of a solution can be determined experimentally in several ways. The pH scale is the range of pH values from 0 to 14. The paper that
Premium PH Acid
Investigating the effect of pH on the activity of the enzyme catalase. Introduction Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution‚ slightly more viscous than water. It is a weak acid. It has strong oxidizing properties and is therefore a powerful bleaching agent that is mostly used for bleaching paper. Catalase is a common enzyme found in all living organisms. Its functions include the conversion of Hydrogen Peroxide‚ a powerful and potentially
Premium Enzyme PH
increase the rate at which a chemical reaction occurs. We looked at factors that affected the breakdown of hydrogen peroxide. These effects are the different temperatures and pH levels the enzymes were placed in. We found that the optimum‚ or best condition‚ temperature for the enzymes tested was about 22 degrees Celsius. The optimum pH level for the enzyme was 7. Introduction Enzymes are biochemical that catalyze‚ or increase the rate‚ at which a chemical reaction occurs. All enzymes are proteins that
Premium Oxygen Enzyme Hydrogen peroxide
Bio 104-03 Lab #3- Acids Bases‚ and Buffers 1. An acid is a substance that releases hydrogen ions as they desolve in water and ranks lower than seven on the pH scale. An example of an acidic substance is lemon juice. A base is a substance that accepts hydrogen ions and ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes
Premium PH Blood
Enzyme Lab: Peter Kuetzing – 10/4/2012 – F Block 1. How does changing the concentration of enzyme affect the rate of decomposition of H2O2? When more enzymes is added the rate of reaction speeds up. In this case‚ H2O2 will produce more O2‚ in return the kpa/min will go up. 2. What do you think will happen to the rate of reaction if the concentration of enzyme is increased to five drops? Predict what the rate would be for 5 drops. I think that the rate of reaction will slightly increase from
Premium PH Enzyme
Lab 6.C Hypothesis: If enzyme activity is affected by the pH of a solution‚ then the enzymes will experience the greatest activity at a pH of 6. Variables: Independent Variables Dependent Variable Controls Four different pH values (10‚ 7‚ 6‚ and 3) Change in color of the solution The amount of potato extract‚ pH solution‚ and catechol used (1 cm +/- .1cm) Size of the test tubes Amount of time allowed for the catechol to sit with the potato extract and pH solution (20 minutes with 5
Premium PH