attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction? Glucose will diffuse through the 200 MWCO membrane because its MW is 180. The MW of the protein albumin is much greater than 200 so it will not diffuse through the 200 MWCO membrane. 4. Put the following in order from smallest to largest molecular weight: glucose‚ sodium chloride‚ albumin‚ and urea. Sodium chloride‚ urea‚ glucose‚ and albumin Simulated Facilitated Diffusion
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Bilirubin is a breakdown end product of heme containing proteins. About 80% of bilirubin is formed from the degradation of erythrocyte hemoglobin after 120 days of erythrocyte life in the blood. The remaining 20% of daily-produced bilirubin is formed from erythrocyte precursors in bone marrow and other heme proteins: myoglobin‚ cytochromes‚ and catalase. Hemoglobin degradation begins with opening of the heme porphyrin ring‚ forming the biliverdin – iron – globin compound known as verdoglobin.
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Which carrier proteins affect Na+ transport? Correct: None of the carrier proteins included in this active transport simulation affected Na+ transport. --------------------------------------------------------------------------Question 15 Refer to Activity 5. The ratio of Na+ to K+ transport is
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3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membranes. How well did the results compare with your predictions? Glucose was able to diffuse through the 200 MWCO membrane‚ however albumin was not able to diffuse through the 200 MWCO. This is due to the difference of the molecular weight between the two molecules. Glucose has a molecular weight of about 180 g/mol and albumin (a protein composed of 67 amino acids and each amino acid is 67 g/mol) has a
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area of lower concentration. The kinetic energy that all molecules possess is the motivating force in diffusion. Facilitated diffusion occurs when molecules are too large to pass through a membrane or are lipid insoluble. In this process‚ carrier protein molecules located in the membrane combine with solutes and transport them down the concentration gradient. Filtration is another type of passive process and‚ unlike diffusion; this is not a selective process. The pressure gradient on each side
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* Albumin * Glucose * Deionized water * Beakers The experiment wasn’t done in an actual lab‚ but rather using a computer simulation in order to achieve precision and save time. Results: At 20 MWCO ‚NaCl (9.00 mM) no diffusion occurred . At 50 MWCO‚ NaCl(9.00 mM) diffusion occurred from the left beaker to the right until reached equilibrium was reached. Equilibrium occurred in 10 minutes as NaCl decreases from 9.00 mM to 4.50 mM. Whereas glucose‚ urea and albumin at 20 and
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Chromatography (Greek for ‘colour writing’) is used to describe various methods applied to separate mixtures (referred to as the sample of the experiment) with great accuracy to analyze them. By using chromatography we can manipulate these to move at different speeds through the system‚ thus separating them. Chromatography is necessary in chemical industries‚ as well as bio processing companies. Chromatography can be: 1. analytical: used to measure ratios of analytes(substance in simpler forms)
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URINE WHAT IS URINE is a liquid by-product of the body secreted by the kidneys through a process called urination(or micturition) and excreted through the urethra. Kidney’s waste from protein metabolism urination - the primary method for excreting water-soluble chemicals from the body. Dark yellow urine is often indicative of dehydration. Yellowing/light orange may be caused by removal of excess B vitamins from the bloodstream. Certain medications such as rifampin and phenazopyridine can
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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IB204 Mock exam 1 1) Tightly curled or wooly hair is caused by a dominant gene in humans. If a heterozygous curly-haired person marries a person with straight hair‚ what fraction of their offspring would be expected to have straight hair? A) 1/2 straight B) 1/4 curly C) 100% straight D) 3/4 curly E) It is impossible to predict the outcome. 2) Assume that a black guinea pig crossed with an albino guinea pig produced 5 black offspring. When the albino was crossed with a second black one‚ 4
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