Discuss why hydrogen bonding is essential for life Throughout biochemistry there are many bonds without which life as it is on earth today would not be possible. One of the most important bonds of these is the hydrogen bond‚ a weak chemical bond that is present in essential biological molecules such as water and polypeptides. A hydrogen bond is defined by Campbell and Reece as occurring when a hydrogen atom is covalently bonded to an electronegative atom but attracted to another electronegative
Premium Water Covalent bond Atom
Aim: To investigate the effect of hydrogen peroxide concentration on enzyme catalase Indroduction: Enzymes are proteins. They function as biological catalysts. They lower the energy barrier of a reaction so that the reaction can take place at body temperature. Also‚ they can speed up Metabolic reactions without being changed or used up. During a reaction‚ an enzyme molecule combines temporarily with the substrate. When the reaction is complete‚ the enzyme molecules returns to its original dorm
Premium Enzyme Oxygen Catalase
one enzyme can carry out one type of reaction. The catalase enzyme speeds up the breakdown of hydrogen peroxide into oxygen and water. The hydrogen peroxide molecule acts as the substrate molecule and enters the active site where it is broke down into oxygen and water. The oxygen and water then leave the active site. Catalase enzyme Hydrogen peroxide (toxic) oxygen + water In the investigation I am doing‚ these are the factors I could change:
Premium Enzyme Oxygen
Objective: To investigates the enzymatic effect of various materials in the hydrogen peroxide solution. Apparatus & Equipment: Beaker Test tubes Either: water bath (95oC) or Bunsen burner Materials: Fresh Liver Potato cubes Manganese dioxide Hydrogen peroxide** Wood splints **Caution: Hydrogen peroxide is formed continuously as a by-product of chemical reactions in living cells; it is a very toxic (poisonous) substance. [Note: using boiling tubes may provide
Premium Oxygen Water Chlorine
On what I have seen‚ the first experiment showed chemical reaction to be more specific‚ combustion. In the experiment the Potassium permanganate (KmnO4) was used as the oxidant‚ and obviously oil as the fuel. As the two were mixed they needed to release energy in form of heat‚ that’s where combustion occurs. I learn that Combustion is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of
Premium Potassium permanganate Chemistry Hydrogen peroxide
Erin Arroyo Lab report June 11‚ 2013 Biology 123 Professor K Title: Scientific Investigation of the Peroxidase Enzyme & Temperature Abstract: In this lab we tested the effect temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the different absorbance levels they produced every 20 seconds for two minutes straight using a spectrophotometer. The important part of this experiment was the temperature
Premium Enzyme Oxygen Hydrogen peroxide
Title I decided to do my experiment on chicken livers. It was interesting to do this experiment on chicken livers. The results were that since there is DNA I needed to stir the ingredients slowly and do the experiment as quickly as I can due to the fact that there are enzyme in the cells. I found out that liquid detergent is an active agent which the detergent destroy the cell membrane and also the protein. Abstract I chose to do my experiment on chicken livers to see what the
Premium Chemistry Experiment Hypothesis
all having their own drawbacks. But‚ the one that will be focused upon in this analysis is hydrogen as a source of fuel‚ and the technology leading the way to making it a reality. This technology would affect everyone in one way or another if correctly used. So we must ask if this technology is beneficial to us‚ how it might hurt us‚ and whether it is worth pursuing from an ethical stance. Background: Hydrogen has already been under the micro scope for many years as an alternative fuel source to us
Premium Fuel cell Energy development Fossil fuel
Discussion Our results indicate that the presence of iron increases the rate of the peroxidase’s activity‚ judging from the increase in absorbance with increasing amount of iron. This result supports our hypothesis that the iron acts as a cofactor in peroxidase’s activity and results in the faster rate of the reaction. Also‚ we assumed that the more we put iron in the solutions‚ the faster the rate is. This assumption is also supported by the results that higher concentration of iron cofactors shows
Premium Oxygen Enzyme Chemical reaction
re-fuel‚ launch‚ educate and distribute?) Benefits. No pollution: A great benefit of using Hydrogen fuel cells is that they give off no pollution‚ and in fact produce pure water as a byproduct. Even though currently engineers are concentrating on producing hydrogen from natural gas‚ it will be for a short-term. Scientists are planning to have renewable environmentally-friendly ways of producing hydrogen in the future. Efficiency: Fuel cells generate electrical power quietly and efficiently. Approximate
Premium Fuel cell Hydrogen vehicle