What is the difference between a benign and a malignant tumor?
A)Benign tumors are composed of cancer cells; malignant tumors are not.
B)Benign tumors are not the result of a failure of a cell cycle control system; malignant tumors are.
C)Benign tumors do not metastasize; malignant tumors do.
D)Benign tumors do not form lumps; malignant tumors do form lumps.

Question

Quizplus · Accepted Answer

The main difference between a benign and a malignant tumor is that a benign tumor does not metastasize, or spread to other parts of the body, while a malignant tumor does invade surrounding tissues and spread to other parts of the body through the bloodstream or lymphatic system. Benign tumors can still cause harm if they grow in a critical area, but they are not considered cancerous because they do not have the ability to spread to other organs or tissues. Option A is incorrect because benign tumors are not composed of cancer cells, while malignant tumors are. Option B is incorrect because both types of tumors can be the result of a failure in cell cycle control systems. Option D is incorrect because both benign and malignant tumors can form lumps.

What Is the Difference Between a Benign and a Malignant