NEET BIOLOGY

Detailed explanation-1: -Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body. Cancer is the second-leading cause of death in the world.

Detailed explanation-2: -Cancer cells grow and divide at an abnormally rapid rate, are poorly differentiated, and have abnormal membranes, cytoskeletal proteins, and morphology. The abnormality in cells can be progressive with a slow transition from normal cells to benign tumors to malignant tumors.

Detailed explanation-3: -Cancerous cells are ones that reproduce contantly and ignore apoptosis signals (death signals) to self-destruct, thereby preventing damage and more innefective cells. They do not function correctly, usually from irreperable DNA damage which would normally mean they would perform apoptosis to not cause further harm.

Detailed explanation-4: -A cancer can grow into, or begin to push on nearby organs, blood vessels, and nerves. This pressure causes some of the signs and symptoms of cancer.