Post Lab Questions lhey hoe to allow oh to go n and out 1. Why is it necessary f
ID: 3476317 • Letter: P
Question
Post Lab Questions lhey hoe to allow oh to go n and out 1. Why is it necessary for the plasma membrane of our cells to be "selectively permeable"? 2. Why is it important that the solute concentration of the cytoplasm within our cells is the same as the solute concentration of the extracellular fluid? 3. Case Study: After running a marathon, an individual is brought into the ER with severe hyponatremia. Hyponatremia occurs when a severely dehydrated person rapidly consumes large amounts of water. This causes the amount of sodium in the blood to drop drastically and the amount of water to greatly increase (blood becomes hypotonic). If the blood circulating though the brain is extremely hypotonic, what effect might this have on the brain cells? What symptoms might this person exhibit? List a couple of health care professionals that may be involved in the care and treatment of this person. (think short term and long term, educating patient, etc) 0+binn ertatt to prevent hangul titan co grom andl damaging LtExplanation / Answer
2. It is important that the solute concentration of the cytoplasm within our cells is the same as the solute concentration of the extracellular fluid to prevent osmosis which will take place in differences in solute concentration between the two. In case of drastic changes, results might be lethal.
Detailed explanation:- If a cells's cytoplasm is hypertonic with resoect to the fluid outside of it's plasma membrabe, water difusses into it. If the cytoplasm is hypoyonic with respect to the fliud on the outside, water diffuses out. (This movement of water across membranes is osmosis.) In either case, the solute concentration of the cytoplasm may change. If it changes enough, the cell's enzyme will stop working with potentially lethal results. Although, many cells have built-in mechanisms that compensate for differences in solute concentration between cytoplasm and extra-cellular fluid but in cells with no such mechanism; results might be lethal.
3. If the blood circulating through the brain is extremely hypotonic, it's effect on the brain cells might be quite severe including permanent disability of brain cells or even death.
Symptoms that this person might exibhit are -
Healthcare professionals from different specialities may be involved in the care and treatment of the person.