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Arsenic is a toxin that stops respiration in cells - OCR Gateway - GCSE Biology - Question 9 - 2020 - Paper 1
Question 9
Arsenic is a toxin that stops respiration in cells. What other cell process would be stopped because of arsenic? A. Active transport B. Diffusion C. Osmosis D. Trans... show full transcript
Worked Solution & Example Answer:Arsenic is a toxin that stops respiration in cells - OCR Gateway - GCSE Biology - Question 9 - 2020 - Paper 1
Step 1
What other cell process would be stopped because of arsenic?
Answer
Arsenic inhibits cellular respiration, which is essential for providing energy for active transport. Active transport is the process by which substances are moved across cell membranes against their concentration gradient, requiring energy in the form of ATP. Without respiration, ATP production decreases, thereby stopping active transport. Therefore, the correct answer is:
A. Active transport