Photo AI
The glucose tolerance test is used to investigate the control of glucose in the human body - HSC - SSCE Biology - Question 12 - 2019 - Paper 1
Question 12
The glucose tolerance test is used to investigate the control of glucose in the human body. Patients consume 75 g of glucose and their blood glucose is monitored. T... show full transcript
Worked Solution & Example Answer:The glucose tolerance test is used to investigate the control of glucose in the human body - HSC - SSCE Biology - Question 12 - 2019 - Paper 1
Step 1
Which graph could represent the results of glucose tolerance tests in a non-diabetic person and a person with untreated Type 2 diabetic?
Answer
To analyze the results of glucose tolerance tests, we consider the expected blood glucose levels and their trends in both non-diabetic and Type 2 diabetic individuals.
In a non-diabetic individual, after consuming glucose, blood glucose levels would initially rise and then gradually decrease as insulin becomes effective, bringing the levels back to normal.
Conversely, for a person with untreated Type 2 diabetes, there would be a higher peak in blood glucose levels, and the return to baseline would be slower due to the body's inadequate response to insulin.
Among the given graphs, option D displays the characteristic response of a non-diabetic person (gradual decrease after the peak) and a Type 2 diabetic person (higher and prolonged peak), correctly representing the expected physiological responses.