Ncert Exercises & Solutions

12. How is a cancerous cell different from a normal cell?

Normal cell	Cancerous cell
1. Normal cells show the property of contact inhibition. Therefore, when these cells come into contact with other cells, they stop dividing.	1 Cancerous cell lacks the property of contact inhibition. Therefore, they continue to divide, thereby forming a mass of cells or tumors.
2. They undergo differentiation after attaining a specific growth.	2. They do not undergo differentiation.
3. These cells remain confined at a particular location.	3 These cells do not remain confined at a particular location. They move into neighboring tissues and disturb its function.