Introduction! ! The Michelson Interferometer is commonly used to determine the wavelength of light or measure very small distances. It was invented by Albert Abraham Michelson and is commonly used in optical interferometry‚ a branch of physics involving a family of techniques one could use to extract information about waves by superimposing them. ! ! The original application of the Michelson Interferometer was to the famous Michelson-Morley experiment in 1887. Prior to Einstein’s
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defects will arise due to the lack of processes. Ciliary defects occur often in humans due to the defects in the cilia projections around the body. Cilia can suffer from genetic disorders‚ which are called ciliopathies. Ciliopathies usually involve proteins that
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ingestion takes place” “What are enzymes” “Enzymes are very efficient catalysts for biochemical reactions. In the mouth there’s an enzyme that will help your food undergo chemical digestion” “What is it” “It is amylase. Which help digest starch into smaller molecules. This enzyme will help break down the bread since it is filled of carbohydrates. Next the food will go down the the pharynx.”
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of lipase Aim: To investigate the effects of temperature on the activity of lipase enzyme on milk which contain fats or lipids. Introduction: Enzyme is a kind of biological catalyst that made up of protein. It can speed up the metabolic reactions on various kinds of substances. Like lipase can break down lipid into glycerol or fatty acids in milk. Since enzyme is made up of protein which easily affected by varies temperature. This experiment is carried out to find the effects of temperature on
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room temperature Fig. 1: The concentration of iodine diffusing across the membrane (mol/L) vs rate of diffusion (molecules/cm2 *min). The concentration was measured at 3 minutes intervals for 30 minutes. The increased for 9 minutes and then began to decrease. Fig. 2: The concentration of iodine (mol/L) diffusing across the membrane at 35.5°C vs the rate of diffusion (molecules/cm2*min). The concentration was measure at 3 minute intervals for 30 minutes. The rate increased for 21 minutes until
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Cl-18). COVALENT BONDS: form when two atoms share one or more pairs of outer-shell electrons (ex: methane=CH4‚ Carbon with 4 hydrogen molecules attached to its outer shell‚ because carbon has 4 spots open in its outer shell).HYDROGEN BONDS: in water‚ H2o‚ the 2 hydrogens share electrons with the 1 oxygen‚ making oxygen slightly – and hydrogen slightly + (a polar molecule is one with an uneven distribution of charge)‚ these opposing charges attract each other. 7. Water is structured so that the (-)part
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the amount of reducing sugars and starch in yellow and green bananas. Introduction: Bananas are green in colour and taste flat but after they are harvested and stored for some days‚ they will turn yellow from green and become sweet. Hypothesis: The green banana tasted plain because it contained large amount of starch‚ while the yellow banana tasted sweet since it contained large amount of reducing sugars. Biological principles: Benedict’s test for reducing sugar: Reducing sugars include all
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Proteins are polymeric chains that are built from monomers called amino acids. All structural and functional properties of proteins derive from the chemical properties of the polypeptide chain. There are four levels of protein structural organization: primary‚ secondary‚ tertiary‚ and quaternary. Primary structure is defined as the linear sequence of amino acids in a polypeptide chain. The secondary structure refers to certain regular geometric figures of the chain. Tertiary structure results from
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the dialysis tubing to glucose‚ starch‚ and iodine. Initially‚ glucose and starch were placed into the bag‚ and iodine outside of the bag in the beaker. We used the iodine test for the presence of starch which proved positive inside of the bag‚ and Benedict’s reagent for glucose which was positive outside of the bag. We therefore concluded that only small molecules like glucose and iodine can permeate through the bag‚ starch is too large. Introduction This lab has several key objectives. First
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Ashley Njeru Mrs. Booth Tuesday‚ March 19th 2013 SBI 4U INTRODUCTION: The cellular activity of all organisms is controlled through the use of enzymes. An enzyme is a special type of biological molecule‚ usually a protein‚ which speeds up a chemical reaction; most are soluble in water or a dilute salt solution. There are about 4000 different enzymes in a typical living cell. If even one of these enzymes is missing or defective‚ the results can disastrous
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