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Multiple Choice
Cancer is a disorder in which some cells have lost the ability to control their:
A
rate of cell division
B
response to external stimuli
C
ability to synthesize proteins
D
cellular respiration
Verified step by step guidance
1
Step 1: Begin by understanding the concept of cancer. Cancer is a disorder characterized by uncontrolled cell division, which occurs when cells lose their ability to regulate the cell cycle.
Step 2: Recall the role of the cell cycle in normal cells. The cell cycle is tightly regulated by checkpoints and external signals to ensure proper division and function. In cancer cells, these regulatory mechanisms are disrupted.
Step 3: Analyze the options provided in the question. The correct answer should relate to the fundamental characteristic of cancer, which is the loss of control over the rate of cell division.
Step 4: Eliminate incorrect options by considering their relevance to cancer. For example, while cancer cells may exhibit changes in protein synthesis or cellular respiration, these are secondary effects rather than the primary cause of the disorder.
Step 5: Confirm that the correct answer is 'rate of cell division,' as this directly addresses the hallmark feature of cancer: uncontrolled proliferation of cells.