BIO 322 Test 3 Pre Test Questions and Correct Answers

What is the osmolarity of a solution of 140 mM NaCl? 280 mOsm/L 140 mOsm/L 320 mOsm/L 0.0140 Osm/L 280 mOsm/L How much filtrate is produced in an hour in a typical person? 125 ml/min No idea. 7.5 L 12.5 L 7.5 L A transfusion of serum would differ from a transfusion of saline in that The number of red blood cells in the blood would decrease less with serum compared to saline. The hematocrit would increase after serum transfusion because formed elements are a part of serum but are not included in saline. Blood clotting is enhanced with serum because it contains fibrinogen. The plasma protein concentration of the blood would not change after serum transfusion, because serum has many proteins and saline does not. The hematocrit would increase after serum transfusion because formed elements are a part of serum but are not included in saline. Lots of lab math questions in lab ask you to calculate the AMOUNT of something. What units can amount be? L g mg/dl mM g 1 Jolly Rancher candy has 11 grams of sugar. What is a reasonable value for blood sugar after eating just 1 candy? Assume that insulin is not secreted and that all of the sugar is absorbed into the blood. 11 grams into 5 L = 2.2 grams/L. Converting to mg/dl gives 220 mg/dl. Adding this to a person's blood would increase blood sugar to around 300 mg/dL. 11 grams into 10 L = 1.12 mols/L. Converting to mg/dl gives 110 mmols/dl. Adding this to a person's blood is no big deal. would increase blood sugar to around 300 mols/dL. 11 grams into 5 L = 2.2 grams/L. Converting to mg/dl gives 220 mg/dl. Adding this to a person's blood would increase blood sugar to around 300 mg/dL. 1 hard candy DOES NOT change blood sugar levels significantly. That's just common sense. 11 grams into 5 L = 2.2 grams/L. Converting to mg/dl gives 220 mg/dl. Adding this to a person's blood would increase blood sugar to around 300 mg/dL. What is the osmolarity of a solution containing 125 mM NaCl and 50 mM KCl and 2 mM CaCl2? 356 mOsm/L 177 mOsm/L 300 mOsm/L 250 mOsm/L 356 mOsm/L Peritubular fluid in the renal cortex Is most similar to interstitial fluid with high Na+ and low K+. Is impossible to know because this fluid is reabsorbed from kidney tubules and that is under facultative control. is most similar to intracellular fluid with high Na+ and low K+. Is most similar to interstitial fluid with high Na+ and low K+. If the GFR is 125 ml/min what volume of filtrate is produced in an hour? 158.4 L 0.110 L 6.6 liter 7.5 L 7.5 L Calculate the osmotic concentration of a solution containing 100 mM NaCl and 50 mM glucose. A. 250 mOsm/L B. 300 Osm/L C. 200 Osm/L D. 400 mOsm/L A. 250 mOsm/L