the rate of diffusion. 5. Why do you think that the urea was not able to diffuse through the 20 MWCO membrane? 6. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. 7. Put the following in order from smallest to largest molecular weight: glucose‚ sodium chloride‚ albumin‚ and urea. ACTIVITY 2: Simulated Facilitated Diffusion Answers 8. True or False: The facilitated diffusion of glucose requires energy from ATP. 9. Which of the following
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Human Anatomy & Physiology‚ 9e (Marieb) Chapter 17 Blood MATCHING QUESTIONS Figure 17.1 Using Figure 17.1‚ match the following: 1) Monocyte. Answer: B Diff: 1 Page Ref: 659; Tbl. 17.2 2) Lymphocyte. Answer: D Diff: 1 Page Ref: 659; Tbl. 17.2 3) Eosinophil. Answer: C Diff: 1 Page Ref: 658; Tbl. 17.2 4) Neutrophil. Answer: A Diff: 1 Page Ref: 657; Tbl. 17.2 5) Most common white blood cell found
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Fatima Khan Q: WHAT IS THE CLINICAL IMPORTANCE OF URIC ACID AND CREATININE? ANSWER: URIC ACID Uric acid is a weak organic acid‚ the end product of purine nucleotides degradation. The findings of human pathological levels of uric acid in serum and urine have in most patients serious clinical implications. Uric acid is a useful diagnostic tool as screening for most of purine metabolic disorders. The importance of uric acid measurement in plasma and urine with respect of metabolic disorders is
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atoms may include oxygen‚ nitrogen‚ sulfur…etc. They can be found in nature‚ since “organic” means present in‚ or derived from‚ plants and animals. Materials/ Apparatus: Bunsen burner‚ 3 test tubes‚ test tube holder‚ dropper‚ red litmus paper‚ albumin (cystine)‚ sugar (sucrose)‚ urea‚ soda lime‚ 1% sodium hydroxide‚ hydrochloric acid‚ 5% lead acetate Procedure A: Testing for Carbon‚ Hydrogen and Oxygen 1. 1g of sugar (sucrose) was placed in a dry test tube. 2. The test
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3. Which MWCO dialysis membranes allowed both of these ions through? 50‚ 100‚ 200 4. Which materials diffused from the left beaker to the right beaker? Na+/Cl-‚ Urea‚ Glucose 5. Which did not? Why? Albumin did not diffuse from the left to the right beaker. The conclusion is that Albumin is a polar substance. Polar substances have a much lower solubility in the membrane phospholipids. Certain compounds that are intermediates of metabolism are not usually allowed through the membrane‚ as
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fluid leaks from blood vessels into the pleural space. Chemically‚ transudate pleural effusions contain less protein and LDH (lactate dehydrogenase) than exudate pleural effusions. If both the pleural fluid–to–serum total protein ratio is less than or equal to 0.50 and the pleural fluid–to–serum LDH
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Mary the Nursing Student Mary is 39 -year-old LPN and single mother who is attending a local community college to prepare for an A.S. degree in nursing so she can then become an RN. Mary has not been feeling well for several months. She has had bouts of nausea‚ a low fever‚ and has found that she no longer enjoys eating and smoking as much as she used to. She has also noticed that her urine is darker than usual and she has yellowing of her eyes. She has noted that she has a puffy appearance
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phenobarbitone (60 mg/kg). The serum was separated by centrifugation at 1000 rpm for 10 min and analyzed for biochemical parameters such as serum urea‚ uric acid and electrolytes. Serum urea was measured using the commercially available kit (Liquicheck AGAPPE Diagnostics LTD)‚ following the GLDH-Urease method (Tietz‚ 1976). The amount of creatinine in serum was estimated using Liquicheck AGAPPE Diagnostics commercial kit according to Picrate method (Cook‚ 1975). Serum uric acid level was determined
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the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50‚100‚ 200 4. Which materials diffused from the left beaker to the right beaker? Urea‚ NaCl and glucose diffused 5. Which did not? Why? Albumin was too large to diffuse into the right beaker. Activity 2: Simulating Dialysis 6. What happens to the urea concentration in the left beaker (the patient)? Its concentration gradient changes and causes it to move down. 7. Why does this occur
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the urea to pass through. The molecular weight of urea is 60.06 g/mol‚ over three times greater than the 20 MWCO. 3. Glucose was able to diffuse through the 200 MWCO pore because it was small enough‚ having a molecular weight of 180.2 g/mol. Albumin was unable to pass through because it was far too large‚ having a molecular
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