The purpose of this lab was to understand that because substances have different properties‚ such as mass‚ that can be separated by chromatography. In our experiment‚ we chose 4 different color source to separate in water. We made sure that all the sources were water soluble because only polar substances will dissolve in water. We chose a black wet-erase marker‚ a red marker‚ a green marker‚ and mixed food coloring to test. The chromatography paper was split into 4 sections‚ about 2 cm above the
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Enzymes are generally protein macromolecules that act as catalysts in metabolic reactions. A catalyst is a chemical agent that speeds up a reaction without being consumed by the reaction. Enzymes speed up metabolic reaction rates by lowering the activation energy barrier‚ which is the amount of energy initially needed to spark a reaction. It allows reactant molecules to absorb enough energy to break bonds and react without raising the temperature to an extreme. During this process the substrate
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During the lab we took and measured the heartbeat of my lab partner twice and the blood pressure twice in different situations to measure the differences that occur. At the start my lab partner was calm resulting in the blood pressure to be around 125/59 with 55 beats per minute. The second time we did it‚ the numbers were fairly similar 126/59 and 62 beats per minute. At the beginning there is no action potential occurring or the pacemaker is not racing to make the heart beat quicker because the
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Introduction Enzymes are key players in metabolism. A metabolism is the organic processes in a cell or an organism that are necessary for life. An enzyme affects the rate at which a reaction occurs when the activation energy is lowered. In this reaction the reactant is called the substrate which is that combine with enzymes molecules to form a temporary enzyme substrate complex. During this products are formed and the enzyme molecules released is unchanged. For the substrate complex to form the
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someone’s motives will make their actions more clear. In other words‚ I have learned that ignorance is never something to strive for‚ even though some people like to use it to drown out the things they would rather not think about. In The Curious Incident of the Dog in the Nighttime‚ it is especially important to know about Christopher’s history with his disability in order to better
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The Curious Incident of the Dog in the Night-time – Context research 1. BIOGRAPHICAL CONTEXT (life and works of the author) The author is Mark Haddon who was born in Northampton and studied English at Uppingham School and Merton College‚ Oxford. Haddon has won Whitebread book of the year (2003) and Commonwealth Writer’s Prize overall for The Curious Incident of the Dog in the Night-time. He worked with autistic people as a young man‚ resulting in knowledge about Asperger syndrome as displayed through
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How procedures for accidents‚ illness‚ injuries and emergencies are followed effectively Introduction It is important while working with children that procedures are set in place and followed effectively to avoid illness or injury through boundaries that are created to protect children within that environment. These procedures may be there to protect children from that environment‚ People in that environment or an unexpected emergency. In the case of an emergency it is vital that procedures are
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The Outsiders - Sadie Meyer Questions: Describe each of the Greasers. Darry: He was particularly strong‚ and extremely resilient . “Darry is six-feet-two‚ and broad-shouldered and muscular…….....He’s got eyes that are like two pieces of pale blue-green ice. They’ve got a determined set to them‚ like the rest of him” (Hinton 6). Darry was the head of the Curtis family. Every since their parents passed away in a car accident‚ he was the legal guardian of Ponyboy and Soda. So he yelled at them to
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Before one can begin the lab‚ he/she must make a prediction about what gene the trait one are analyzing is on. The trait can either be sex-linked‚ or autosomal. To begin the lab‚ one must acquire a sample of flies to cross. These flies should be placed in a tube with an easily removable foam stopper. Use the flynap to knock out the fruit flies‚ and pour them out of the tube into a petri dish. Then place the petri dish on a stereomicroscope‚ and begin using a paintbrush to sort the flies by gender
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The purpose of this experiment was to see if the different amounts of fertilizer we applied to the algae would affect the growth rate. Also‚ we tested if fertilizer was even an impact in the growth rate of algae. Increasing the amount of the dependent variable (fertilizer) would affect the independent variable (growth of algae) negatively due to too much chemicals that are being applied to the independent variable. Which would kill the algae cells or at last damage them and either the algae would
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