Amoeba has flexible cell membrane. It enables amoeba to engulf in food by the process called endocytosis.
∆ABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that AD = AB (see Fig. 7.34). Show that ∠ BCD is a right angle.

Read More: Fundamental Unit of Life: Cell
The different parts of a cell and their functions are as follows:
