INSERT DESIGN PAGE LAYOUT REFERENCES MAILINGS REVIEW VIEW Membranes homework (1)

Question

INSERT DESIGN PAGE LAYOUT REFERENCES MAILINGS REVIEW VIEW Membranes homework (1) docx Compatibility Model- Word R 11 Blu.de x, x*) A.'y-A. "It-. I s , L..- 11 Normall1NoSpac Font Heading 1 Heading 2 Title 2. A single celled animal e.g. amoeba, has an internal solute concentration of 5mM. The amoeba swims from an area where the solute concentration is 5mM to an area where the solute concentration is ImM. The solutes are too big to be able to move across the membrane. What will happen to the amoeba cell? Explain your answer. 3. A single celled animal e g. amoeba, has an interaal solute concentration of SmM. The amoeba swims from an area where the solute concentration is 5mM to an area where the solute concentration is 10mM. This time, the solutes can cross the membrane by one of the mechanisms desceribed in problen l above. Wlat happens to the amoeba when it completes its jouney? in problem I above. What happens to the amoeba when ir completes i Type here to search

Explanation / Answer

2. The single-celled amoeba has semi-permeable membrane and allows the movement of the material in and out of the cell. Now as per the question the cell having an internal solute concentration of 5mM moves to an area of solute concentration of 1mM.Thus, the cell is in a hypotonic solution where the solute concentration is less. But as the solute size is too big to move across the membrane, so the solvent moves into the cell due to low osmotic pressure(it is the minimum pressure required to prevent the movement of solvent through a semipermeable membrane) causing the cell to swell up.

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