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Which is a definition of cancer? A - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 4

Question 9

Which is a definition of cancer? A. An infection of foreign cells which divide uncontrollably. B. Body cells that divide uncontrollably many times. C. Body cells ... show full transcript

Worked Solution & Example Answer:Which is a definition of cancer? A - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 4

Step 1

A. An infection of foreign cells which divide uncontrollably.

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Answer

This option is incorrect as cancer is not primarily defined as an infection of foreign cells. Cancer originates from the body's own cells.

Step 2

B. Body cells that divide uncontrollably many times.

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Answer

This is the correct definition of cancer. Cancer involves the unregulated division of body cells, leading to the formation of tumors and potential spread to other body parts.

Step 3

C. Body cells that lose the ability to divide and make stem cells.

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Answer

This option is incorrect. Cancer cells typically gain the ability to divide indefinitely, rather than lose it.

Step 4

D. Pathogens that grow and divide unchecked.

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Answer

This option is misleading. While some pathogens can grow unchecked, cancer specifically refers to uncontrolled cell division within the body's own tissues.

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Which is a definition of cancer? A - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 4

Worked Solution & Example Answer:Which is a definition of cancer? A - OCR Gateway - GCSE Biology - Question 9 - 2019 - Paper 4

A. An infection of foreign cells which divide uncontrollably.

B. Body cells that divide uncontrollably many times.

C. Body cells that lose the ability to divide and make stem cells.

D. Pathogens that grow and divide unchecked.

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