Arrange the following events into an appropriate sequence....

Name: Problem 9, Chapter 47: Biology
Uploaded: 2021-12-15T18:33:21-08:00
Duration: 1 min 3 s
Channel: Hunza Gilgit
Description: Arrange the following events into an appropriate sequence. (1) blood glucose concentration increases (2) alpha cells in islets stimulated (3) homeostasis (4) low blood-glucose concentration (5) glucagon secretion increases (a) 1, 2, 3, 5, 4 (b) 5, 4, 2, 1, 3 (c) 1, 2, 5, 4, 3 (d) 4, 2, 5, 1, 3 (e) 4, 5, 1, 2, 3.

Arrange the following events into an appropriate sequence. (1) blood glucose concentration increases (2) alpha cells in islets stimulated (3) homeostasis (4) low blood-glucose concentration (5) glucagon secretion increases (a) 1, 2, 3, 5, 4 (b) 5, 4, 2, 1, 3 (c) 1, 2, 5, 4, 3 (d) 4, 2, 5, 1, 3 (e) 4, 5, 1, 2, 3.

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Key Concepts

Blood Glucose Homeostasis

This is the process by which the body maintains stable levels of blood glucose despite fluctuations caused by dietary intake, metabolism, or hormonal actions. It involves feedback mechanisms that adjust the levels of hormones to increase or decrease blood glucose as needed, ensuring that the internal environment remains balanced.

Pancreatic Islets of Langerhans

These are clusters of endocrine cells in the pancreas that play a central role in regulating blood glucose levels. They contain several types of cells, including alpha cells and beta cells, which secrete hormones essential for maintaining metabolic balance.

Alpha Cells

Alpha cells are specialized cells within the pancreatic islets that detect low blood glucose levels and respond by secreting the hormone glucagon. Their activation is crucial for initiating the process that raises blood sugar when it falls too low.

Glucagon Secretion

This refers to the release of the hormone glucagon by alpha cells. Glucagon acts primarily on the liver to stimulate the production and release of glucose into the bloodstream, making it a key mediator in the response to hypoglycemia and overall blood glucose regulation.

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