Hormonal regulation of blood glucose after meals

Steps:

• Blood glucose rises after eating due to carbohydrate digestion.
• The graph likely shows peaks post-meals and returns to baseline.
• Insulin lowers glucose by promoting uptake into cells.
• This matches the pattern of elevation followed by decline after meals.

Why B is correct:

• Insulin is released by the pancreas in response to high blood glucose after meals, facilitating glucose storage as glycogen per the endocrine regulation of homeostasis.

Why the others are wrong:

• A: Adrenaline raises blood glucose by breaking down glycogen, which would prolong peaks, not explain declines.
• C: Adrenaline release before meals would elevate glucose unnecessarily, not matching post-meal patterns.
• D: Insulin before meals would decrease glucose when it's already low, causing hypoglycemia.

Final answer: B