was added while on the second set denatured enzyme was added instead. Though this experiment was not performed due to the bad extraction of invertase and loss of time‚ the expected graph result is a hyperbola; where in optimum pH is at pH 5. And sucrose hydrolyzed has the same trend as the absorbance. II. INTRODUCTION Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions‚ the molecules at the beginning of the process are called substrates‚ and they are converted
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REVIEW SHEET EXERCISE 1 Cell Transport Mechanisms and Permeability Simple Diffusion The following refer to Activity 1: Simulating Dialysis (Simple Diffusion). Which solute(s) were able to pass through the 20 MWCO membrane? NONE 1. According to your results‚ which solute had the highest molecular weight? Albumin 2. Which solute displayed the highest rate of diffusion through the 200 MWCO membrane? Na+Cl 3. Using the data from Chart 1‚ explain the relationship between the
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Limitations Sucrose concentration Organism 0% 15% 30% P. fluorescens +4 +4 +2 S. salivarius +2 +3 - S. cerevisiae +2 +4 +3 5. Fill in the spaces in the following chart with a + or -. For the mineral salts results‚ score growth using - for no growth and +1 to +4 for growth. Test E.coli K.pneumoniae S.epidermidis M.luteus Glucose Fermentation: acid gas + + + - Mineral salts plus glucose +2 +3 +3 +2 Lactose Fermentation: Acid gas + + + - Mineral salts plus lactose +2 +4 +3 +2 Sucrose Fermentation:
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water in the production of potable water or industrial process water. The reasons are increasing costs for ground water (taxes‚...) and new available technologies enabling a quality and cost efficient (less O&M costs) treatment e.g. membrane filtration. 15 years ago reverse osmosis (RO) became state-of-the-art for the production of demineralised water (boiler feed or process water) from conventionally pretreated surface water. Recently direct ultrafiltration (UF) of those surface water without
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causing the cell to shrink. We created models of living cells by using dialysis tubing. The dialysis tube represented the cell membrane to act as selectively permeable to water and some solutes. We observed different solutes (NaCl‚ Ovalbumin‚ Glucose‚ Sucrose‚ and Water) in the dialysis tubing. The problem was what environment the solutes would create and whether water would diffuse in or out of the cell. I predicted that all of the tubes will be in a hypotonic environment after the 30 minutes because
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Glomerular Filtration 2. Tubular Reabsorption 3. Tubular Secretion 4. Excretion GLOMERULAR FILTRATION ž This is the movement of fluid and solutes out of the glomerulus‚ across the glomerular capillary membrane‚ and into Bowman’s capsule. ž The filtrate that is formed here should NOT contain any red blood cells or protein. ž Filtrate contains mostly water‚ NaCl‚ K+‚ bicarbonate‚ glucose‚ amino acids‚ creatinine and urea GLOMERULAR FILTRATION PRESSURES
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the functions of the components of a nephron‚ and relate those functions to cellular and histological specializations. Segment General Functions Specific Functions Renal Corpuscle Filtration of plasma; generates approximately 180 L/day of filtrate similar in composition to blood plasma but without proteins Filtration: Water and inorganic and organic solutes from plasma Retention: Plasma proteins and blood cells Proximal Convoluted Tubule Reabsorption of 60-70% of the water (108-116 L/day)‚ 99-100%
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results show what I predicted would happen. My prediction was that as the concentration of sucrose increased the amount of water moving in or out of the potato would change. A low concentration of sucrose solution would make the potato increase in length and mass (become turgid). A high concentration of sucrose solution would make the potato shrink (plasmolysed) We can see this occurred‚ as at 0.1mol of sucrose solution the potato’s size increased by an average % change in mass of +11.78%‚ whereas
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the ________. =glomerular hydrostatic pressure Excretion of dilute urine requires ________. =impermeability of the collecting tubule to water Overall‚ which of the following pressures is ultimately responsible for glomerular filtration? =net filtration pressure Which
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Croton’s Water Filtration Company has had many negative and positive impacts on the community and surrounding areas of the Bronx and Manhattan. This plant is one of the biggest constructions in New York’s City history. In 1993 there was a threat of contamination causing the plant to be shut down. The preparation for the plant started in 2004. This company had to abide by the state and federal regulations of drinking water. They had to think of the public health. They have been applying water to
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