It is important to control the concentration of glucose in the blood - AQA - GCSE Biology - Question 3 - 2022 - Paper 1
Question 3
It is important to control the concentration of glucose in the blood. Figure 2 shows how the concentration of glucose in the blood of a person changed over 4 hours.
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Worked Solution & Example Answer:It is important to control the concentration of glucose in the blood - AQA - GCSE Biology - Question 3 - 2022 - Paper 1
Step 1
Give one time when the concentration of insulin in the person’s blood would be high.
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Answer
The concentration of insulin in the person’s blood would be high at around 1.5 hours after a meal, when the blood glucose concentration spikes.
Step 2
Explain the effect a high concentration of insulin has on blood glucose concentration.
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Answer
Effect: lowered
Explanation: A high concentration of insulin leads to the uptake of glucose into the cells for energy or storage as glycogen, resulting in a decrease in blood glucose levels. This process is primarily facilitated by liver and muscle cells, which utilize glucose in respiration.
Step 3
What is person A’s weight category?
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Underweight
Step 4
Give the range of body masses that would put person B in the healthy weight category.
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Range from 67.5 kg to 90 kg.
Step 5
Give two ways the results of the blood test show that person C might have Type 2 diabetes.
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Person C has higher glucose (9.56 mmol/dm³) than the mean for people who do not have diabetes (4.51 mmol/dm³).
Person C has higher insulin levels (24.32 arbitrary units) compared to the mean for people who do not have diabetes (14.83 arbitrary units).
Step 6
Give two ways that a person can reduce the chance of developing Type 2 diabetes.
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Exercise regularly to maintain a healthy weight.
Eat less carbohydrate or follow a low carbohydrate diet.
