The following table depicts the differences between plant cells and animal cells.
| Characteristic | Plant Cell | Animal Cell |
| Cell wall | Present | Absent |
| Shape of cell | Distinct edges, shape is either rectangular or square shaped. | Round and irregular shape |
| Nucleus | Present. Lies on one side of the cell | Present. Lies in the center of the cell |
| Lysosomes | Rarely present | Always present |
| Plastids | Present | Absent |
| Structure of Vacuoles | Single or a few large vacuole that is centrally located | Presence of numerous and small vacuoles |
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop 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.
Where do the lipids and proteins constituting the cell membrane get synthesised?