Question 1 1 pts The experimental results showed that two different molecules with the same molecular weight (MW) cannot diffuse without molecular energy. O can have different membrane permeabilities. O can have different diffusion rates. will both be impermeable to membranes. will have the same diffusion rates, Next
Question 3 1 pts Which of the following solutions has the lowest water concentration? O 10% glucose ODl water O 5% sucrose O 1% sucrose Next >
Question 4 1 pt If a dialysis bag is placed in an unknown solution and gains weight, the solution was probably osmotically inactive O isotonic O a 0.9% saline solution O hypertonic O hypotonic
Question 5 1 pts If we place a potato in a salt water solution, and the potato becomes limp and loses weight, which of the following has happened? Active transport due to the potato being placed in a hypotonic solution. O Osmosis due to the potato being placed in a hypotonic solution. Osmosis due to the potato being placed in a isotonic solution. Osmosis due to the potato being placed in a hypertonic solution. O Diffusion of sodium into the water due the hypertonic solution.
Question 6 1 pts When hemolysis occurs to red blood cells in a solution, that solution will O stay the same. o expand in volume. O become red. O decrease in volume. O become clear Next 1 poate
Question 7 1 pts Which of the following must be true for a solution to be osmotically active? The solute concentrations are different on opposing sides of the membrane but are capable of diffusing freely. Water must be in a high concentration outside of the cell, which allows osmosis the the inside of a cell. The solution contains a solute that cannot cross the membrane. The solute concentrations inside and outside of the membrane are equal and are free to cross the membrane. The membrane is permeable to water but is impermeable to the solute.
Question 8 In an experiment, red blood cells are placed into 0.2 % NaCl solution. That solution is and the will occur. O hypotonic, crenation O isotonic, hemollysis O isootonic, no cell change hypotonic, hemolysis O hypertonic, crenation O hypertonic, hemolysis O isotonic, crenation hypotonic, no cell change hypertonic, no cell change Moy + 71561/quizzes/3231811/take/questions/58943323
Question 9 1 pts Which of the following are permeable to the cell membrane (assume there are no channels in the membrane)? a) urea b) Nat c) glycerol d) glucose e) sucrose O only b only a O b, d, and e cand e O c, d, and e O a, b, c, d, and e a and c
Question 10 6 pts Explain concisely but thoroughly what happens when a dialysis bag with 5% sucrose is placed in a solution of 15% sucrose. Include all relevant vocabulary words. If diffusion occurs, explain what is diffusing and in what direction it diffuses and why that happens. If no diffusion occurs, explain why it doesn’t occur. I am looking for a complete explanation, but partial credit will be offered for incomplete explanations. Edit View Insert Format Tools Table 12ptParagraph :
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Explain the Reaction Where a potato is Placed in a salt water solution, and the potato becomes limp and loses weight.