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Multiple Choice
All of the following are characteristics of cancer cells EXCEPT:
A
Loss of contact inhibition
B
Ability to metastasize
C
Uncontrolled cell division
D
Strict regulation of the cell cycle
Verified step by step guidance
1
Understand the characteristics of cancer cells: Cancer cells exhibit specific traits such as loss of contact inhibition (they continue to grow even when they come into contact with other cells), the ability to metastasize (spread to other parts of the body), and uncontrolled cell division (proliferating without normal regulatory signals).
Review the concept of contact inhibition: Normal cells stop dividing when they come into contact with neighboring cells. Cancer cells lose this property, allowing them to grow uncontrollably.
Examine the ability to metastasize: Cancer cells can invade surrounding tissues and spread to distant parts of the body through the bloodstream or lymphatic system, a process known as metastasis.
Analyze the regulation of the cell cycle: In normal cells, the cell cycle is strictly regulated by checkpoints and signaling pathways to ensure proper division. Cancer cells bypass these regulatory mechanisms, leading to uncontrolled growth.
Identify the exception: Since cancer cells are characterized by loss of regulation in the cell cycle, the statement 'Strict regulation of the cell cycle' does not describe cancer cells and is the correct answer to the question.