10.All of the following are true of a cell that is hypertonic to its solution EXCEPT: a.the intracellular fluid has more dissolved solutes than the extracellular fluid c.the extracellular fluid has a lower osmotic potential than the cellb.the cell will swell d.specific molecules will leave the cell via aquaporins 56% got this correct. This will always be the case. Students will always confuse hypo- and hypertonic. Questions like this in the past six years of teaching this class always result in 50% averages. 11.Which of the following bonds are the weakest: Only 35% got this correct. A is a covalent peptide bond. B is a covalent glycosidic bond. C are hydrogen bonds. D are covalent phosphodiester bonds. 53% of you chose D. I personally think this is because you memorized my last semester’s exam question and didn’t realize I swapped out guanine for thymine in choice D. Below is that old exam question (that I’m now certain that at least 53% of the class has copies of). Unfortunately for many of you, I’m not lazy. I actually care and rewrite my questions. 11. Which of the following bonds are the weakest: 12.Which of the following is not located on the lateral surface of an epithelial cell: a gap junction a hemidesmosome 54% got this right. 18% chose E. Gap junctions are on the lateral membrane. This is clearly illustrated in your notes. I didn’t leave you to discover this on your own though, I lectured on it as well.
13.All of the following are true of mesenteries EXCEPT: a.they are composed of a double layer of visceral peritoneumc.they are composed of simple squamous epithelial membranes b.they help stabilize all of the organs within the ventral body cavity that are inferior to the diaphragm d.they help bring blood and nerve supply to the viscera 38% got this right. I’m not sure why 31% chose C? A mesentery is a double layer of visceral peritoneum right?