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People with diabetes insipidus are unable to produce enough of the hormone ADH - Edexcel - GCSE Biology - Question 5 - 2015 - Paper 1
Question 5
People with diabetes insipidus are unable to produce enough of the hormone ADH. In a medical study, the ADH levels in the blood of eight people were measured. Four... show full transcript
Worked Solution & Example Answer:People with diabetes insipidus are unable to produce enough of the hormone ADH - Edexcel - GCSE Biology - Question 5 - 2015 - Paper 1
Step 1
Calculate the mean ADH level in the people without diabetes insipidus.
Answer
To calculate the mean ADH level for individuals A, B, C, and D, we use the formula for the mean:
ext{Mean} = rac{ ext{Sum of ADH levels}}{ ext{Number of individuals}}First, we sum the ADH levels:
Next, we divide by the number of individuals, which is 4:
ext{Mean} = rac{16.4}{4} = 4.1 ext{ µg per dm}^3
Step 2
Suggest why there is a wide range of ADH levels in the people without diabetes insipidus.
Answer
The wide range of ADH levels in people without diabetes insipidus may be attributed to several factors, including:
- Individual Health Variability: Different health conditions, such as hydration levels or other hormonal influences, can affect ADH levels.
- Genetic Factors: Genetic predispositions might lead to variations in hormone production or response.
- Environmental Influences: Factors like stress, diet, and exercise can impact the body's hormonal balance and, consequently, ADH levels.