It was observed that blood glucose levels were falling in an individual. This event would be sensed by (a) cells in the (b) of the pancreas, causing them to release the hormone (c). This series of events would be part of an (d) loop/mechanism, serving as a self-adjusting mechanism for maintaining normal levels of blood glucose.
I thought it was alpha cells in the islet of the pancreas releasing glucagon, but what is the loop?
i tried negative and negative feedback both wrong
never mind negative feedback is right. lul
The series of events you described is part of a negative feedback loop. A negative feedback loop is a self-adjusting mechanism that helps maintain normal levels of a certain variable in the body. In this case, the variable is blood glucose levels.
To answer your question about the specific cells and hormone involved, let's break it down:
(a) Cells involved: The cells involved in sensing the falling blood glucose levels are typically located in the islets of Langerhans, which are tiny clusters of cells within the pancreas. Specifically, it is the beta cells that play a significant role in sensing glucose levels.
(b) Location: The islets of Langerhans are scattered throughout the pancreas, but they are most concentrated in the tail region.
(c) Hormone released: When blood glucose levels are falling, the beta cells in the islets of Langerhans release a hormone called insulin. Insulin helps facilitate the uptake of glucose into cells, thereby reducing blood glucose levels.
So, to correct your statement, it is actually beta cells in the islets of the pancreas that release insulin when blood glucose levels are falling.
In summary, the correct series of events is:
(a) Beta cells in the islets (not alpha cells) of the pancreas sense falling blood glucose levels.
(b) This triggers the release of the hormone insulin by the beta cells.
(c) Insulin helps lower blood glucose levels by promoting the uptake of glucose into cells.
This process is part of a negative feedback loop, which is a self-adjusting mechanism that helps maintain normal blood glucose levels.