Q57. Why plant cells need cell walls?
What is the function of cell wall in a plant cell?
Q58. What are the functions of the cell membrane?
Q59. State the difference between eukaryotes and prokaryotes.
Q60. Make a sketch of the human nerve cell. What function do nerve cells perform?
Q61. Write short notes on the following:
(b) Nucleus of a cell
Q62. Make sketches of animal and plant cells. State three differences between them.