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People with diabetes cannot always control the concentration of glucose in their blood - Edexcel - GCSE Biology - Question 8 - 2023 - Paper 2
Question 8
People with diabetes cannot always control the concentration of glucose in their blood. (a) Two people eat identical meals. One person has diabetes, the other perso... show full transcript
Worked Solution & Example Answer:People with diabetes cannot always control the concentration of glucose in their blood - Edexcel - GCSE Biology - Question 8 - 2023 - Paper 2
Step 1
Describe two differences in the concentration of glucose in the blood of the two people shown in Figure 15.
Answer
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The concentration of glucose in the blood of the person with diabetes is consistently higher than that of the person without diabetes.
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The glucose level of the person with diabetes does not return to pre-meal levels within the six-hour period, while the level of the person without diabetes does.
Step 2
Calculate the maximum increase in the concentration of glucose in the blood of the person with diabetes.
Answer
To calculate the maximum increase, observe the graph for the highest point reached by the glucose concentration for the person with diabetes. If we assume the maximum concentration reached is 20 mmol per dm³ and it started from a baseline of, say, 5 mmol per dm³, then the calculation would be:
Thus, the maximum increase in the concentration of glucose in the blood of the person with diabetes is 15 mmol per dm³.