to transfer 1. For the graph shown below, which of the following methods of tran
ID: 150896 • Letter: T
Question
to transfer 1. For the graph shown below, which of the following methods of transport is being utilized the substance INTO the cell? A) Diffusion down a concentration gradient B) Osmosis C) Facilitated diffusion D) Active transport ICF Concentration of substance (mmol) ECF concentration of substance (mmol) 2. The graph below shows the volume changes of a red blood cell, which was placed in solution X (the arrow indicates when the cell was placed into the solution). Which of the following statements must be TRUE? A) Solution X was iso-osmotic and isotonic B) Solution X was iso-osmotic and hypotonic C) Solution X was hypo-osmotic and hypotonic D) Solution X was hypo-osmotic and hypertonic E) Solution X was hyper-osmotic and isotonic Cell Volume TimeExplanation / Answer
1) Because after some time the icf and ecf concentration of the substance becomes constant the Diffusion down a concentration gradient. So correct option is a.
2) Because in osmosis the solution moves from low the high concentration in osmosis
So , the red blood cell when placed in an hyperosmotic solution , the content of the red blood cell will move out, causing its shrinkage. So correct option is d.
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