Essays Tagged: "Hydrogen peroxide"
Dr. develops No calorie fat substitute
e made it out of tough hulls of corn, oats, and rice. He first crushed the hulls with a solution of hydrogen peroxide. He washed the peroxide off in centrifuge. After this step it was still too large, ... ge. After this step it was still too large, so he put the pieces back through the first step of the hydrogen peroxide and the centrifuge. That made it smooth. Now, it is a fine, white cellulose powder ...
Subjects: Science Essays > Biology
Enzyme on hydrochloric acid and yeast.
ng at the amount of oxygen given off when a yeast culture b is added to different concentrations of hydrogen peroxideBackground informationAn enzyme is a biological catalyst. They speed up the rate of ... ed Fit Theory.Catalyse is an enzyme found in food such as potato and liver. It is used for removing Hydrogen Peroxide from the cells. Catalyse speeds up the decomposition of Hydrogen Peroxide into wat ...
Subjects: Science Essays > Biology
A lab report on the investigation of temperature on catalase activity.
ALASE ACTIVITYAIMThe aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide. This will enable us to tell at what temperature hydrogen peroxide is most efficie ... to be obtained:Cork BorerWater Baths at 3,20,40 and 60 degrees CelsiusPotatoRulerStopwatchDetergentHydrogen PeroxideNow that all this apparatus has been obtained, it is possible to start the experime ...
Subjects: Science Essays > Biotechnology
To investigate the effect of temperature changes to the activity of Enzyme Catalyses.
ution)Diced potatoBunsen burner (can be replaced by thermosactic water bath if possible)IceGlass rodHydrogen peroxidepH 7 bufferVariable and invariable factors:ØpH of enzyme: This can be done b ... an be done by the addition of pH7 buffer.ØConcentration of enzyme: This can be done by using hydrogen peroxide from the same source every time.ØThe time for reaction must be the same eac ...
Subjects: Science Essays > Biology
I am going to investigate how the temperature affects the catalyse enzyme on hydrogen peroxide, using potato discs for the catalyse.
AimI am going to investigate how the temperature affects the catalyse enzyme on hydrogen peroxide, using potato discs for the catalyse.HypothesisCatalyse is a biological enzyme whi ... s best between 30 and 40 degrees, like most enzymes. It also has an optimum pH.Catalyse breaks down Hydrogen Peroxide into water and oxygen. Plant and animal cells contain catalyse.`I predict that the ... ain catalyse.`I predict that the catalyse enzyme found in the potato will break down the substrate (Hydrogen Peroxide) quickest at 37- 40 degrees Celsius because enzymes work best at certain temperatu ...
Subjects: Science Essays > Biology
What affect the substrate has on the rate of reaction with the enzyme in potato?
Put a set amount of potato into the conical flask.2. Then add the chosen concentration of hydrogen peroxide.3. The bubbles go through the rubber delivery tube and push water out of t ... sure the volume of gas.5. Repeat this process with the next concentration of the substrate (hydrogen peroxide.)SafetyI will wear safety goggles throughout and handle the hydrogen peroxide with ...
Subjects: Science Essays > Biology
An investigation to compare the reaction rates between potato an hydrogen peroxide and liver and hydrogen peroxide
An investigation to compare the reaction rates between potato and hydrogen peroxide against liver and hydrogen peroxide through loss in mass.Background information:Ca ... otein chain. The secondary structure shows the basic folding of the protein and is held in place by hydrogen bonds. The tertiary structure shows a more complex folding which gives it its globular shap ... product and therefore fewer products will be made in a certain amount of time. Catalase reacts with hydrogen peroxide to form water and oxygen in the cells. Hydrogen peroxide is a toxic chemical that ...
Subjects: Science Essays
The Effect Of Substrate on Enzyme concentration
ubes/beaker occurs, clean up immediately."h In order not to confuse test tubes containing water and hydrogen peroxide, label each of them clearly"h Remember to wash hands after handling yeast suspensi ... es are not altered"h Make sure that when the volume of yeast and water is changed and then added to hydrogen peroxide the total volume is 8 cm3."h Make sure the volume of hydrogen peroxide in all the ...
Subjects: Science Essays > Biology
Biology coursework.
m for my experiment is to investigate how a small piece of potato affects the rate of reaction with hydrogen peroxide.For this investigation the following could be changed could changed:·Concen ... asure and observed:·Time·Size of PotatoI am going to be changing the concentration of hydrogen peroxide. The volume will be 30ml so water will need to be added to make it a fair test. I ...
Subjects: Science Essays > Biology
Enzyme action
se of this experiment is to investigate the properties of an enzyme - substrate reaction2.HypothesisHydrogen peroxide is a very reactive compound that can be used for a variety of reactions including ... se of many other animals contain an enzyme called catalase that accelerates the conversion of toxic hydrogen peroxide to water and oxygen gas.In this experiment, if the concentration of the enzyme is ...
Subjects: Science Essays > Biology
An experiment to look at the effect of 1 factor on an enzyme
nt to look at one factor which affects the enzyme catalase.Catalase is involved in the breakdown of Hydrogen Peroxide into water and oxygen.2H202 "_ 2H20 + 02It can be found in most cells, however it ...
Subjects: Science Essays > Biology
To investigate the effect that surface area has on the rate of reaction
o investigate the effect of increasing surface area on the rate of reaction.Background information: Hydrogen peroxide is a chemical that consists of hydrogen and oxygen. Its chemical formula is H O . ... s of plants and animals. It is an aerobic (requires oxygen) bacteria. It promotes the conversion of hydrogen peroxide, a potentially harmful oxidising agent to water and molecule oxygen. Catalase also ...
Subjects: Science Essays > Biology
The effect of hydrogen peroxide on catalyse if you change the temperature
The effect of hydrogen peroxide on catalyse if you change the temperaturePlan:Aim:My aim in this investigation is ... vestigate how the temperature affects the rates of reaction of the enzyme catalyse on its substrate hydrogen peroxide.An enzyme is a biological catalyst, it alter the rate of reaction without being ch ... lyse have?Catalyse is a very fast reacting enzyme, it is found in many living cells, it breaks down hydrogen peroxide to water and oxygen. In fact one molecule of it can deal with six million molecule ...
Subjects: Science Essays > Biology
To find out the optimum pH at which the enzyme catalase would best break down hydrogen peroxide.
investigation is that to find out the optimum pH at which the enzyme catalase would best break down hydrogen peroxide.Briefly describe your Preliminary Experiment and include your results. Explain how ... stand 1x glass pencilDescribe the method you plan to use, include all safety precautions (p4a)SafetyHydrogen peroxide is irritable to the human skin so care must be taken to avoid direct contact with ...
Subjects: Science Essays > Biology
Investigation to see the effects of increasing the surface area of a potato when mixed with Hydrogen Peroxide.
In my coursework I will investigate about enzymes in potatoes reacting with Hydrogen Peroxide. In particular I will investigate the effects of changing the surface area of a po ... In particular I will investigate the effects of changing the surface area of a potato when added to Hydrogen Peroxide. This is because, when increasing the surface area of the potatoes it will increas ... rate of reaction because there will be more surface area on which particles from the potato and the Hydrogen Peroxide will collide on, and with more surface area there would be more particles carrying ...
Subjects: Science Essays > Biology
The effect of concentration of enzyme and enzyme substrate on the rate of an Enzyme-catalysed reaction
will be investigating how different concentrations of the enzyme catalase affect the rate at which hydrogen peroxide is broken down into water and oxygen. In order of doing this different concentrati ... iquid catalase that is gained from dried yeast will be added to a fixed volume and concentration of hydrogen peroxide for a fixed time length.Enzymes are protein molecules that function as catalysts, ...
Subjects: Science Essays > Biology
To investigate the effect of surface area on the rate of reaction using the enzyme Catalase, found in potato, and the substrate Hydrogen Peroxide.
Hydrogen peroxide has an acidic pH which will break down into water which has a neutral pH. This may ... st and setup:- Potato- Potato borer- Ruler- Scalpel- 6 conical flasks- 20ml syringe (to hold enough hydrogen peroxide to cover the chip in the boiling tube)- Double holed bung- Retort stand- Clamp- To ... next reading directly after the first without having to fill the cylinder as much)- Bowl of water- Hydrogen peroxide 20vol- Splint- Timer- Delivery tube- TilediagramMethod1. Set up apparatus includin ...
Subjects: Science Essays > Biology
Catalase essay
the cells of plants, animals and aerobic (oxygen requiring) bacteria. It promotes the conversion of hydrogen peroxide, a powerful and potentially harmful oxidizing agent, to water and molecular oxygen ... ntially harmful oxidizing agent, to water and molecular oxygen.2H2O2 to 2H2O + O2Catalase also uses hydrogen peroxide to oxidize toxins including phenols, formic acid, formaldehyde and alcohols.H2O2 + ...
Subjects: Science Essays > Biology
The Effects of Peroxidase
The breakdown of hydrogen peroxide by the enzyme peroxidase is a common chemical reaction in cellular metabolism. How ... is a common chemical reaction in cellular metabolism. However if the cells develops high amounts of hydrogen peroxide, it can harm the cell itself. There is a reaction within the liver that involves t ... rogen atoms in a toxic substance to bond with already existing oxygen molecules, this in turn forms hydrogen peroxide. The hydrogen peroxide is then neutralized by a specific interaction with the enzy ...
Subjects: Science Essays > Biology
An Investigation into how the Concentration of Substrate will affect the Rate of an Enzyme Controlled Reaction
IntroductionI am going to investigate how the concentration of hydrogen peroxide affects the rate of reaction between the hydrogen peroxide, and it's enzyme, catal ... he speed with which this reaction can take place.These include;-The concentration of the substrate (Hydrogen peroxide)-The concentration of the yeast solution-The temperature of both the substrate and ... centration of the substrate in this experiment. I will do this by changing the concentration of the hydrogen peroxide, and measuring the different amounts of gas produced after a given length of time. ...
Subjects: Science Essays > Chemistry