and Enzyme Concentration on Catalase Reaction Rate II. Introduction Enzymes are used to increase the rate of specific reactions in the body. Catalase‚ a specific enzyme‚ speeds the breakdown of hydrogen peroxide‚ a toxic chemical produced by cells in the body‚ into water and oxygen (Cain and others‚ 2010). The oxygen can be observed as bubbles coming from the reaction site. Catalase is found in many living tissues of organisms‚ including chicken liver. The purpose of this experiment is to determine what changes in pH
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Effects of Temperature on the Formation of Cheese Curds This lab was performed in order to find what temperature the enzyme chymosin is most effective at forming cheese curds. An enzyme is a protein that acts as a catalyst to speed up biological reactions in cells. They work by lowering the activation energy and help to orient the molecules correctly. Chymosin was originally taken from the stomachs of calves‚ and was called rennet‚ and then purified to make rennin. Eventually to catch up with
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time spent in each phase. Introduction: The cycle of a cell roughly doubles it volume of cytoplasm and duplicates its genetic information i.e. replicated DNA. Then it divides the genetic information equally into two daughter nuclei. The cell cycle can be divided into two phases interphase and mitotic phase. The time spent in these phases depends upon the type of cell and its particular developmental or physiological state. Cells comprising rapidly growing tissues‚ like those in the root tip
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Meal Worm Cellular Respiration Experiment Introduction Cellular respiration provides energy to all living organisms by collecting energy from food molecules. The cell then rearranges complex molecules to simpler molecules and uses that energy to make a molecule that stores energy called adenosine triphosphate also known as ATP. Cellular respiration can occur with or without oxygen. When it occurs without oxygen‚ it is called anaerobic respiration. There are very few organisms that can get
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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stion 1 of 9 10.0/ 10.0 Points The main ingredients to form thunderstorms are A.Lift. B.Moisture. C.Instability. D.All the above. Answer Key: D Question 2 of 9 10.0/ 10.0 Points The most likely time for an ordinary cell thunderstorm to form is A.just after sunrise. B.late afternoon. C.just before sunrise. D.around midnight. E.at noon. Answer Key: B Question 3 of 9 10.0/ 10.0 Points Which of the following regions would you expect to have the most tornadoes in the winter
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volume concentrations. In other words: 1% = . So‚ 15ml and H2O x = 0.15 g liver. This means 0.15g of liver for each percent of catalyze concentration. Overall I need 2.25g of chicken liver because I will conduct each percent with 3 trials. Measure 0.15g of chicken liver for 1% catalyzes concentration using electronic balance and a sterile weigh boat Grind the chicken liver until little to no clumps are visible Measure 15 ml of distilled water using graduated cylinder and transfer to mortar
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Protocol for Lab 5 – Aerobic Respiration Part 1 Isolation of Mitochondria from Cauliflower - Weigh 50g of rosettes cut from fresh cauliflower head. - Cut rosettes and place it on ice - Prepare juice extractor by placing ice and an empty 150 ml beaker into the right compartment. - Collect pulp from left compartment and record total volume of the extract. Approx. 20ml - Filter the pulp using six layered cheese cloth and collect it in a beaker sitting on ice. - Place two 50 ml test tubes
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Inorganic Chemistry 1. A subatomic particle with a single positive electrical charge is protons. 2. A subatomic particle with a single negative electrical charge is electrons. 3. A subatomic particle which is electrically neutral is neutrons. 4. The nucleus of an atom is made up of _protons_ and _neutrons. 5. The number of electrons forming a charge cloud around the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom.
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was used to mimic a cell membrane. Two ways why this model realistically represents a cell is because the dialysis bag is semi-permeable‚ like a cell. The bag was able to allow water in‚ as the size of the water molecule was small enough to be able to fit through the pores of the bag. Sucrose was not able to pass through as the molecules were too big to enter. This is similar to a cell because the size of a molecule can determine whether or not the substance can enter the cell through diffusion. Larger
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