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Osmosis case studies
The effect of osmosis
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1A. Will the nurse’s mistake increase or decrease the “saltiness” of the interstitial fluid?
- The nurse’s mistake will increase the saltiness due to the double amount of saline in the bag.
1B. Given your knowledge of osmosis, will this cause the cells in the body to increase or decrease in size?
-The cells in the body will increase because osmosis causes molecules to move from a less concentrated solution to a more concentrated solution.
2. Why does this patient have pitting edema and inspiratory rales?
-The patient was having pitting edema and inspiratory rales because the increase of sodium caused an increase of fluid in the vascular system and lungs.
3. How would the increase in salt load affect the patient’s blood-aldosterone level?
Once the paramedics retrieve Marc, he will have a high concentration of salt in his blood and fluids. This means that the paramedics would treat him with the half normal saline. This is the solution with the lowest percentage of solutes (0.45% NaCl).this will increase his concentration of water throughout this body and will return his cells to their normal size. However, if the paramedics were to keep him on the half normal saline for too long, his water concentration would be too high and his solute concentration would become too low. This would mean that the paramedics would then need to switch Marc to the normal isotonic saline solution (0.9% NaCl). This would balance out both the concentration of water and solutes so that they are now equal. This would set his balance and homeostasis back to normal, thereby helping his recovery. (Johnson
An Investigation of Factors Affecting the Rate of Osmosis Introduction Osmosis is the movement of water molecules across a semi permeable membrane from a region of high water concentration to a region of low water concentration. [IMAGE] A semi permeable membrane is a membrane with very small holes in it; they are so small that only water molecules can pass through them. Bigger molecules such as glucose cannot pass through it. In actual fact water molecules pass both ways through the membrane, but because there are more water molecules in the high concentration region than the other there is a steady net flow into the lower concentration region. The lower concentration is the stronger solution, such as a glucose solution.
If a plant cell is places in a hypotonic solution the cell has a lower water concentration to that of the solution. Water will move into the cell by osmosis from a high water concentration outside the cell to a lower water concentration inside the cell through a selectively permeable membrane. The cell becomes turbid
I noticed that Mr. X was still on normal saline 0.9% on flow, and his report from this morning showed sodium at the higher end. Since increased sodium post operative would have an impact on his blood pressure and urine output. So, I stopped the flow and informed his doctor about the fluid and discussed if we could switch it with any other fluid. He then, said to keep it in hold, and he would decide when he comes for the round by checking at his total intake output chart and his lab values if to continue or to stop. I followed his order and explained to the patient. Since, it was day 3 (usually in the day, three patients would be mobilized on a chair) so I explained to him that he would be ambulated out of bed today to make him aware of the plan and to give him time to prepare him for the upcoming plan. As first-time mobilization could be stressful for the patient and some needs more time to get themselves ready for it. I explained him that it would be done with the doctor around. As i left the patient, I made sure to keep the nurses call bell near and told him that I would be back to check on
In class we did two labs that represented what happens to cells as they get bigger. The first lab that we did was that we blew up tree balloons that were different sizes small, medium and large. The different sizes represent the different sizes of cells. The Circumference or the small balloon was 17th cm and the radius was 2.70. the larger balloon was 28 cm and having a ratio of 3. 80.4. The surface area for the small balloon was 91. 60 and the large bowling surface area was 254. 30.This shows as the balloon got bigger the cell membrane got bigger the organelles and cytoplasm could not keep up, but the smaller the balloon was represented the opposite. This also shows that the Volume grows faster than the surface area, the cell does and that the membrane can't keep up. This is a huge problem that causes the cell to divide. as we blew up the balloons this
of items in and out of the cell, then essential nourishment can escape the cell.
When a piece of fresh beetroot is left to stand in a beaker of cold
Osmosis is the process of water diffusing through a partially permeable cell membrane. Osmosis occurs when one side of the membrane has a different concentration of water, and the water molecules move through the membrane to a less concentrated area until equilibrium occurs. Equilibrium is the outcome of osmosis, when equal concentration of water occurs on both sides of the cell membrane. There are three tonicities, or ways in which osmosis can travel. A hypotonic tonicity is when the concentration of water is higher inside the cell membrane, which causes the cell(s) to lose in mass from water diffusing out of the membrane. A hypertonic tonicity is the opposite, where the water concentration inside the cell membrane is lower than the concentration of the solution outside of the membrane, causing the cell(s) to gain in mass and the solution outside of the cell membrane to diffuse water. Isotonic tonicity is when both sides of the cell membrane have the same concentration of water, and diffusion will not occur.
Plan On Osmosis Experiment Introduction Knowing that osmosis (a diffusion of water) will occur across a semi-permeable membrane whenever there is a difference between the water concentration on the two sides of the membrane. And knowing that when this happens to all they will either become turgid if water flows into them, or plasmolysed if the water flows out of them, and therefore change their volume, we are going to test the hypothesis that: "If the concentration of a solution into which a cylinder of potato cylinders are placed is greater than a certain level the cylinder will contract, and if the concentration is less than that it will expand. " Aim 1. To investigate the effect of increasing the concentration of sucrose solution on the rate of osmosis in potato cells. 2.
Osmosis Investigation Aim What happens to the mass of a raisin when you put it onto different sugar solutions. A sugar solution made from glucose and water. A raisin is a dried grape. The sand is a grape. A sugar solution is inside a grape.
Osmosis is the diffusion of water across the semi-permeable membrane from a region of low solute concentration to an area of high solute concentration in order to equalize the level of water in each region. Hypertonic, hypotonic and isotonic solutions are involved in this process. Water tends to move from a high to low concentration area, towards a higher solute concentration is hypertonic. When there is more solute outside of a cell, the cell is hypotonic, and when there is more solute inside a cell, the cell is hypertonic. When the solution concentration is equivalent to the concentration of the solution inside the cell, it is called isotonic. Osmotic pressure is the pressure difference needed to stop the flow of solvent across
...art disease and stroke. Patients with high blood pressure, kidney or cardiac problems, and other medical conditions need to avoid sodium. Hypernatremia can be prevented or corrected by ensuring adequate water intake among older adults or those who may not have self-access to water dietary sodium restriction may be needed to prevent sodium excess when renal problems are present. Drug therapies can aim to prevent further increases in serum sodium and decrease high serum sodium levels.
Osmoregulation is the process in which our cells are protected by our water balance. This is controlled by the water loss from
Electrolytes affect the osmolarity of the body’s fluids, which is the amount of mineral content present in the fluid itself. Directly related to water balance, electrolytes work with the water in the body to carry out its processes and aid in transportation and distribution across membranes due to the positive or negative charges that have resulted from the solutions. This makes the two, water and electrolytes, dependent on each other meaning that if water levels are insufficient or there is excess it would affect the osmolarity that would throw off the balance causing solutions around the body to be more dilute or concentrated. Similar complications would occur if the electrolyte levels were too low or high. When this happens the electrolytes are incapable ...
pressure of the cell is so high that no more water can enter the cell.