Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 11 - Self-Quiz - Page 187: 12


a. Malignant cells

Work Step by Step

Neoplasms and tumors are not, in and of themselves, cancerous. What makes them cancerous is when they contain malignant cells. These malignant cells divide very quickly, and their cytoplasm and plasma membranes have been changed. There are abnormal numbers of chromosomes within these cells, or the chromosomes become damaged. The cells' plasma membranes lack regular functioning adhesion proteins, causing these cells to break away from their tissues and travel through the bloodstream to develop malignant neoplasms elsewhere in the body.
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