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carry out osmosis experiment Take four peeled potato halves and scoos each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and answer the following: (i) Explain why water gathers in the hollowed portion of B and C. (ii) Why is potato A necessary for this experiment? (iii) Explain why water does not gather in the hollowed out portions of A and D. |
Answer» <html><body><p><strong>Answer:</strong></p><p>(i) Since sugar and salt was present in B and C respectively, water from the trough gathered in the hollowed <a href="https://interviewquestions.tuteehub.com/tag/portions-1159793" style="font-weight:bold;" target="_blank" title="Click to know more about PORTIONS">PORTIONS</a> of potato in B and C by the process of osmosis.</p><p>(<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>) Potato A is necessary for carrying out this experiment because it acts as a <a href="https://interviewquestions.tuteehub.com/tag/control-425557" style="font-weight:bold;" target="_blank" title="Click to know more about CONTROL">CONTROL</a> experiment. Control helps us to <a href="https://interviewquestions.tuteehub.com/tag/check-25817" style="font-weight:bold;" target="_blank" title="Click to know more about CHECK">CHECK</a> what changes occurred during the course of the experiment and helps us to compare the results.</p><p>(iii) Water does not gather in the hollowed portion of potato A as it was empty. Water also does not gather in the cup D because the potato used was boiled which makes it <a href="https://interviewquestions.tuteehub.com/tag/inactive-499040" style="font-weight:bold;" target="_blank" title="Click to know more about INACTIVE">INACTIVE</a> as after boiling its protein structure were denatured, resulting in the disruption of the cell membrane.</p></body></html> | |