A journalist studied the data in Table 2. She made the following suggestion. 'If an adult takes the maximum number of tablets allowed for either of the medicines, then the person would have more than the RDA of sodium.' The RDA (recommended daily allowance) of sodium for an adult human is 2.4 g per day. Is the journalist's statement true for both of the medicines in Table 2? Show your calculations to support your answer.

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A journalist studied the data in Table 2 - AQA - A-Level Biology - Question 4 - 2020 - Paper 3

Question 4

A journalist studied the data in Table 2. She made the following suggestion. 'If an adult takes the maximum number of tablets allowed for either of the medicines, t... show full transcript

Worked Solution & Example Answer:A journalist studied the data in Table 2 - AQA - A-Level Biology - Question 4 - 2020 - Paper 3

Step 1

Maximum Sodium Intake for Aspirin

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Answer

For Aspirin, the maximum dose is 0.6 g every 4 hours. In a day, this could be taken every 4 hours, making a maximum of 6 doses:

$0.6 g/dose \times 6 doses = 3.6 g$

Since 3.6 g exceeds the RDA of 2.4 g, the journalist's statement holds true for Aspirin.

Step 2

Maximum Sodium Intake for Paracetamol

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Answer

For Paracetamol, the maximum dose is 1.0 g every 6 hours, allowing for 4 doses in one day:

$1.0 g/dose \times 4 doses = 4.0 g$

Similarly, 4.0 g also exceeds the RDA of 2.4 g, confirming that the journalist's statement is true for Paracetamol as well.

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