2 Briefly explain the relationship between molarity and osmolarity of the NaCl solutions.Why is this relationship different for NaCl than it is for sucrose?lta fnom norto 1 and ? and explain what they demonstrate about osmosis and its

The amount of a substance in a given volume of solution is measured in molarity (M). The moles of a…

Answered: 2 Briefly explain the relationship…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 13TYK

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Similar questions

The sodium/calcium exchanger (NCX) transports sodium into and calcium out of cardiac muscle cells. Describe why this transporter is classified as secondary active transport.
1. Explain why phosphoglycerides are found in lipid bilayer 2. Enumerate and describe the mechanisms of transport across a membrane
2.) Suggest a reason why inorganic ions, such as K+, Na+, Ca2+, and Mg2+, do not cross biological membranes by simple diffusion.
24. On the basis of your knowledge of osmosis, predict what will happen to the water in Elodea cells.
23. Osmotic pressure is the force provided by water molecules as they diffuse through the membrane osmotic pressure is indicated by the height of the water columns observed in this experiment higher columns indicate greater pressure What relationship exists between the difference in the concentration of water on each side of the membrane and the osmotic pressure.
8. Which of the following ion transport functions must be carried out by a pump? a. transport of Na+ from the extracellular space to the cytosol b. transport of glucose from the extracellular space to the cytosol c. transport of K+ from the cytosol to the extracellular space d. transport of Na+ from the cytosol to the nucleus e. transport of Na+ from the cytosol to the extracellular space.
5. Why in the initial phase of fluid replacement is rapid in both isotonic and hypotonic dehydration, but it is contraindicated in hypertonic dehydration?
Case Study Importance of Osmolarity/Osmolality Helen has prepared 1000 mL of an IV infusion solution that contains a number of components such as electrolytes, a medication, and a buffering agent to ensure a pH close to that of blood. This preparation has an osmolality of 600 mOsmol/kg. Note that preparations that are isotonic have an osmolality close to that of blood (i.e., 285–295 mOsm/kg). 1, What is the tonicity nature of this solution? Why? Isotonic Hypertonic Hypotonic (Napra 3.2, 6.1, 6.2) 2, What solution components contribute to the tonicity nature of this solution? (Napra 3.2, 6.1, 6.2) 3, What adverse physiological changes can occur if such parenteral admixture is infused into the blood circulation of a patient? (Napra 3.2)
3. Explain the steps involved in the transport of sodium ions and potassium ions across a plasma membrane using the sodium potassium ATPase.
A cell develops a mutation in its potassium channels that prevents the ions from leaving the cell If the cell’s aquaporins are still active, what will happen to the cell? Be sure to describe the tonicity and osmolarity of the cell.
When a dehydrated human patient needs to be given fluids intravenously, he or she is given: water, which is hypotonic with respect to body fluids saline at a concentration that is isotonic with respect to body fluids glucose because it is a non-electrolyte blood
The major cation in extracellular fluid is ________. sodium potassium chloride bicarbonate

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2 Briefly explain the relationship between molarity and osmolarity of the NaCl solutiðns. Why is this relationship different for NaCl than it is for sucrose?