Biology 101 Exercise 2 Write Up A local chicken farmer heard a lot about the bird flu so he freely decided to apply monthly physicals for his chickens. An observation made is that chickens have a body temperature of 104 degrees Fahrenheit. That worries the farmer so he decides to conduct an experiment to try to figure it out. The question is “Do the chickens have a fever?” According to the information the cells are composed of hundreds types of enzymes and each one has a specific role in
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The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature‚ surface area‚ concentration‚ catalysts‚ light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our
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better coverage of white hair and a good shine. They are mixed with developers and do leave a slight re-growth. They last from 12-24 washes. 3. Semi permenant- These colour and condition the hair and gradually fade away. They are not mixed with hydrogen peroxide and last 6-8 washes. The pigments that are in tints are tiny therefore they fit right into the cuticle openings of the hair which is why they are permenant. The pigments in a quasi colour are bigger than the pigments in a tint therefore they
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Write an essay on the role of fungi in wood and litter decay. [40] Fungi‚ together with bacteria‚ are the principal decomposers in the biosphere. They break down organic materials and return the substances locked in those molecules to circulation in the ecosystem. Fungi can break down cellulose and lignin‚ an insoluble organic compound that is one of the major constituents of wood. By breaking down such substances‚ fungi release carbon‚ nitrogen‚ and phosphorus from the bodies of living
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gives them a better understanding of how chemical reactions work and what products they may form. Materials & Procedure Materials: * Wood Splints - Copper Sulfate * Sodium Sulfate - Copper Wire * Barium Chloride - 6% Hydrogen Peroxide * Mossy Zinc - Copper Sulfate Pentahydrate * Hydrochloric Acid - Iron Filings * Manganese Dioxide Procedure: Reaction A Place a scoop of copper (II) sulfate pentahydrate crystals in a clean‚ dry test tube. Use a test tube
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IB Biology Sheran Gu Meghan Lena Nov. 15th Influence of pH on Enzyme Activities How does the pH of solution influence the speed of enzyme activities? Enzymes are protein catalysts and chemical that speed up chemical reaction without being involved in the reaction. They are involved in the human digestive system to help people digest food more efficient. Food are substrates to be break down and absorb through the digestive system in the body. Substrate is a molecule that bond with the active site
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a decomposition reaction could be a redox reaction. The electrolysis of water is a redox reaction. With a direct electric current through it‚ water can be separated into oxygen and hydrogen. H2O H2 + O2 The oxygen and hydrogen in the water are attached by a covalent bond that breaks to make the element oxygen and the element hydrogen. Learning more about the conditions for redox reactions will show that the electrolysis of water is a redox reaction. A single replacement reaction is always a redox reaction
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[1] They are small‚ membrane bounded organelles that have at least fifty different enzymes for several metabolic reactions. [2] Their appearance is like lysosomes; however‚ their main function is oxidation reactions especially oxidation of hydrogen peroxide and producing oxygen and water. There are diseases related and caused by this organelle that can be classified in three groups. [2] First group is a disorder duo to overall dysfunction of peroxisomes‚ like zellweger syndrome‚ second group duo
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information as to how temperature effects the amount of oxygen produced in an enzyme- catalase experiment. In the experiment we used liver extract as a catalase and created a chemical reaction within a reaction chamber between the catalase and hydrogen peroxide as well as three different controlled temperatures. In the procedure below there will be a step by step process as to how the experiment was created. As a result we found that the higher the temperature in the water bath the more oxygen will
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reactions performed in the lab. Reaction 6: Reaction 7: The decomposition of hydrogen peroxide is an example of decomposition. In the lab‚ this was tested when we added hydrogen peroxide and a catalyst of manganese together. When a glowing splint was held over the test tube after the peroxide and manganese had time to react‚ it relit‚ proving that oxygen was present as a product of the decomposition of the hydrogen peroxide. Decomposition reactions occur when a single substance breaks down into two
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