attempt to observe how enzymes (starch phosphorylase in particular) are affected by varying its temperature before introducing it to the substrate it will be reacting with. A catalyst (enzyme) is a substance that changes the rate of a reaction; for a reaction to take place at all‚ the enzyme must first come into contact with the substrate. Enzymes are subject to a number of factors which effect how fast they can cause a reaction with a substrate; these factors include temperature‚ pH levels‚ chemical
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The hypothesis for this experiment was that if the baby lemurs activity level was compared to an adults‚ the baby lemur will have a higher activity level. The hypothesis was not supported. The data shows that the adult had a higher activity level. The data shows the adult being 1.8% more active than the baby lemur. The other behaviors of the adult Ring Tailed Lemur was grooming and sleeping/resting. Second‚ throughout the six trials the only behaviors that were performed by the baby lemur was sleeping/resting
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Enzymes are biological catalysts and each individual enzyme can only catalyse to one type of reaction – due to its specific shape. Each individual enzyme has its own specific shape which is determined by the amino acid sequence that it is made up of – each enzyme’s active site matches to its unique substrate molecule. For the sake of our experiment – enzymes catalyse reactions because they become an active site for reactions to take place. This lowers the energy that is needed for the reaction but
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Practical 2.1- The Effect of Temperature on Membranes Objective To investigate the effect of temperature on membrane structure Introduction Beetroot Pigments Beetroots contain Betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Beetroot Picture taken from http://tipdeck/how-to-cook-beet-root Structure
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Paperose Lab- Introduction to Enzymes Ms. Kim/Honors Biology Purpose To Determine the rate of an enzyme reaction using a “modeled” enzyme and sugar‚ paperase and paperose. Introduction In this lab‚ your hands are the enzyme‚ paperase. This enzyme split the sugar‚ paperose‚ into subunit A and subunit B. You will split this molecule by ripping the paper model down the middle. Materials Paperose models‚ scissors‚ plastic bag‚ container (large plastic cup)‚ stopwatch‚ Procedure 1. Each
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PROCEDURE: Part A (Effect of temperature on growth) 1) 15 tubes of glucose broth are provided and one set of 3 tubes are inoculated with each of the following cultures; Escherichia coli‚ Pseudomonas fluorescens‚ Micrococcus luteus and Saccharomyces cerevisiae. The last served as control. 2) One of the three tube of each culture is incubated at each of the following temperature: * 4°C * 37°C * 55°C 3) All the tubes are incubated within 5 minutes after inoculating. The turbidity
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Practical: The effect of pH on enzyme activity Rationale Amylase is an enzyme involved in the digestion system which catalyses the breakdown of starch into sugars. It is not only present in human saliva but also in the pancreas‚ where it hydrolyses dietary starch into disaccharides and trisaccharides which are converted by other enzymes to glucose to supply the body with energy. pH has an effect on the activity of all enzymes‚ including amylase. As the pH level increases‚ the enzyme activity increases
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The purpose of this experiment is to determine if the angle of impact affects the diameter and depth of a crater. The hypothesis was correct‚ stating that if the angle of impact changes than the depth and diameter will change due to the amount of speed and force is being put in the marble (meteor)‚ and the most effective angle for the diameter is at a 20 degree angle‚ and for depth is at a 90 degree angle. The hypothesis turned out to be true because it all depends to the angle the meteor or in this
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The effect temperature has on the activity of the enzyme α- amylase. Introduction Enzymes are a biological catalysts‚ which means that they speed up the chemical reactions in living organisms. Almost all of enzymes are energized protein molecules that catalyse and regulate nearly all biochemical reactions that occur within the human body. The reason in which enzymes are sensitive to heat‚ pH and heavy metal ions is because they are made up of proteins. The food we eat is turned into energy by enzymes
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Enzyme Controlled Reactions 1) Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction. Is this a linear relationship? What happens to the initial reaction rate as substrate concentration increases? A) The relationship between the substrate concentration and the initial reaction of an enzyme-catalyzed reaction is very productive‚ but is dramatically affected by the pH level of the given solution. The most productive pH level is
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