BIO 322 Test 3 Questions and 100% Correct Answers

What is the osmolarity of a solution of 140 mM NaCl? 280 mOsm/L How much filtrate is produced in an hour in a typical person? 7.5 L A transfusion of serum would differ from a transfusion of saline in that 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? 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. What is the osmolarity of a solution containing 125 mM NaCl and 50 mM KCl and 2 mM CaCl2? 356 mOsm/L Peritubular fluid in the renal cortex 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? 7.5 L Calculate the osmotic concentration of a solution containing 100 mM NaCl and 50 mM glucose. A. 250 mOsm/L Jennifer told us that she gives her cat subcutaneous injections to help with dehydration. What do you predict the composition of the injections to be, and why? (Thanks J!) The injection is probably most like extracelular fluid, like a person woudl get for dehydration,. That is saline, or 140 mM NaCl solution. I may also contain some K+, maybe 5 mM, and Ca2+, around 2 mM. What is interstitial fluid? Interstitial fluid is extracellular fluid (outside of cells) that IS NOT in the blood vessels. it has a Na concentration of around 140 mM. The DRG and the VRG, located in the medulla oblongata, control respiration. How? The DRG is mainly concerned with inspiration and the VRG with