Figure 3-4 shows a semipermeable containing 4% NaCl 9% glucose and 10% albumin s
ID: 84676 • Letter: F
Question
Figure 3-4 shows a semipermeable containing 4% NaCl 9% glucose and 10% albumin suspended in a solution with the following composition 10% NaCl, 10% glucose, and 40% albumin. Assume the sac is to all substances except albumin. Using the key choices insert the letter indicating the correct choices, event in the answer blanks. A. Moves into the sac B. Moves out of the sac C Does not move _ 1. Glucose _ Water _ Albumin _ 4 NaCl Figure 3-5 shows three microscopic fields (A-C) containing red blood cells. Arrows indicate the direction of net osmosis. Respond to the following questions, referring to Figure 3-5, by inserting your responses in the spaces provided. 1, which microscopic field contains a hypertonic solution? _ The cells in this field are said to be _ 2. Which microscopic field contains an isotonic bathing solution? _ What does isotonic mean? _ 3. Which microscopic field contains a hypotonic solution? _ What is happening to the cells in this field and why? _Explanation / Answer
Question 4.
1. Glucose : moves into the sac
2. Water : moves out of the sac
3. Albumin : does not move
4. NaCl : moves into the sac
Question 5.
1. C contains a hypertonic solution. In hypertonic solution the cells in the fields are said to be swollen.
2. B contains isotonic solution. An isotonic solution can be defined as the solution at which the osmotic pressure, on both sides of the semi permeable membrane is same.
3. The microscopic field showing hypotonic solution is the field A. In this field, the cells start shrinking because in an hypotonic solution, the concentration of solution outside is lower than that of the cells. Thus, water from the cells gush out and the cells shrink.
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