Question

a researcher at the broward county health department has designed an investigation to determine insulin levels in patients with diabetes. insulin is a hormone that regulates the amount of glucose. ten 25 - year - old healthy male subjects are selected. at 8:00 am every day for 3 days, the test subjects eat a meal based on the chart below.

day	time	meal
2	8:00 am	high protein meal
3	8:00 am	high sugar meal

one hour after each meal, the men have their blood insulin levels measured. which of the following is the question the researcher is trying to answer?
how do males process insulin?
how does age affect blood insulin levels?
how does the time of day affect blood insulin levels?
how do different types of food affect blood insulin levels?

Explanation:

The experiment measures blood - insulin levels one hour after different types of meals (high - fat, high - protein, high - sugar) at the same time (8:00 am) for 3 days on young healthy male subjects. The variables being manipulated are the types of food, and the response variable is blood - insulin levels. So the researcher is trying to find out how different types of food affect blood - insulin levels.

Answer:

How do different types of food affect blood insulin levels?