The corn-looking organ in this picture is the pancreas! Which hormone secreted by the pancreas regulates blood sugar levels by facilitating the release of glucose from glycogen when someone is in between meals?

Question

BlackTom AI · Accepted Answer

Here’s how to analyze each option in the context of pancreatic hormones that regulate blood glucose between meals.
Option 1: insulin. This hormone lowers blood glucose by promoting uptake and storage of glucose as glycogen and fat. It is released when blood glucose is high, such as after a meal, not primarily to release glucose during fasting. Therefore, insulin does not facilitate the release of glucose from glycogen between meals, so this choice is incorrect in this context.
Option 2: glucagon. Glucagon is produced by alpha cells of the pancreas and its main job is to raise blood glucose levels during fasting. It stimulates glycogenolysis, the breakdown of glycogen to glucose, in the liver, thereby releasing glucose into the bloodstream when between meals. This directly matches the described function, making this option the correct mechanism in this scenario.
Option 3: megatron. This is not a hormone associated with human physiology or glucose regulation. It appears to be a distractor or a fictional term, so it is clearly incorrect.
Option 4: glycogon. This seems to be a misspelling or a nonstandard term for a hormone. There is no hormone by this name that regulates glucose; thus, it is incorrect due to inaccuracy and lack of a biological basis.
In summary, the option describing a pancreatic hormone that triggers glycogen breakdown to release glucose between meals aligns with the known role of glucagon, while the others either describe the opposite effect, are biologically unfounded, or are misspelled references. These distinctions help distinguish the correct regulatory mechanism from the incorrect alternatives.

The corn-looking organ in this picture is the pancreas! Which hormone secreted by the pancreas regulates blood sugar levels by facilitating the release of glucose from glycogen when someone is in between meals?单项选择题

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