project is to demonstrate how water temperature affects the dissolving of sugar in liquid. Everything in our universe is made up of particles which are in constant motion. In a solid state particles move the slowest while in a liquid state particles move the fastest. Under the right conditions‚ solid particles (the solute) when mixed in liquid (the solvent) can form a solution. This occurrence is called dissolving. I wanted to answer the question; does the temperature of water affect the speed at which
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ACETANILIDE ABSTRACT Recrystallization is the primary method for purifying solid organic compounds through the differences in solubility at different temperatures. In this experiment‚ a suitable solvent was first determined. Acetanilide was produced by acetylation of aniline with acetic anhydride. The crude acetanilide was dissolved in a solvent in a heating water bath. The hot solution was filtered and the filtrate‚ cooled slowly in an ice bath as crystals started forming out. As the compound crystallizes from the solution
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Using an integrated bio-psychosocial approach discuss how stress can affect health‚ well-being and the maintenance of homeostasis. Word count 1‚894 This essay will discuss the effects and implications of stress on health‚ wellbeing and the maintenance of homeostasis using a bio-psychosocial approach. To do this‚ it will focus on the biological‚ psychological and sociological aspects separately with health‚ wellbeing and homeostasis effects running all the way through and attempt to link
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aim of this experiment was to determine the effect of caffeine on resting body temperature. This has to do with homeostasis‚ which is the maintenance of equilibrium. In other words‚ it is a stable body state. Homeostasis refers to the process of keeping the internal body environment in a steady state‚ when the external environment is changed (Homeostasis 2). Humans are warm-blooded creatures that generate body heat internally and maintain body temperatures at a fairly constant level – about 98.6oF
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Photosynthesis is a crucial energy conversion process that occurs in the chloroplasts of eukaryotic cells. The rate of photosynthetic activity holds importance in environmental‚ horticultural and agricultural situations. (Boardman‚ N.K. 1977). Pigments in the chloroplasts thylakoid membrane absorb the electromagnetic radiation from a light source and release an electron into the electron transport chain. DCPIP’s chemical ability to favourably accept electrons‚ and undergo a colour change from
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The Effect of Temperature on the Enzyme Catalase Stephen Francis Biology 183 Abstract This experiment was performed to determine the resultant effect of temperature change on the reaction between the enzyme catalase and hydrogen peroxide. This experiment was performed by measuring and comparing the amount of oxygen bubbles produced and the absorbance of the catalase and hydrogen peroxide solution over time at room temperature‚ 2°C‚ 50°C‚ and 60°C. The overall result of this experiment proved
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is a crucial component to acid rain (1). H2SO3 causes burns in all exposure routes‚ its target organs are the respiratory system if inhaled‚ eyes through direct contact‚ skin through direct contact and gastrointestinal system if ingested. However‚ there is no chronic health hazards with H2SO3 (2). If Sulfurous acid is inhaled medical attention should be sought out immediately‚ the individual should be removed from the exposure to a more ventilated area with fresh air. If breathing remains difficult
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Investigating the Effect of Temperature on Enzyme Activity Almost all chemical reactions that occur in living organisms are catalyzed by enzymes. Many factors in a cell’s environment affect the action of an enzyme. In this investigation‚ you will design an experiment to determine the effect of temperature on an enzyme-catalyzed reaction. You will complete an entire lab write-up using the CHS LAB REPORT FORMAT. Fundamental Question How does temperature affect the rate of an enzyme-catalyzed
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1) Hypertonic refers to _______. 1) _______ A) the concentration of solutes that a cell is bathed in B) a concentration of solutes that is less than the solutes inside the cell C) the concentration of solutes inside a cell D) a solution that will cause a cell to swell 2) What happens to facilitated diffusion when the protein carriers become saturated? 2) _______ A) ATP will be utilized for transport. B)
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Cell Structure Vocabulary Cell Membrane → the semipermeable membrane surrounding the cytoplasm of a cell. Cell Wall → a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants‚ fungi‚ and bacteria. In the algae and higher plants‚ it consists mainly of cellulose. Cellular Respiration → A series of metabolic processes that take place within a cell in which biochemical energy is harvested from organic substance (e.g. glucose) and stored as energy carriers
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