Which of the following statements regarding glucose homeostasis is CORRECT? Afte
ID: 99442 • Letter: W
Question
Which of the following statements regarding glucose homeostasis is CORRECT? After a meal, 12 marks] A blood glucose increases, and the response is release of insulin from -cells of the pancreas blood glucose increases, and the response is release of insulin from -cells ofthe pancreas blood glucose decreases, and the response is release of glucagon from -cells of the pancreas blood glucose decreases, and the response is release of insulin from -cells of the pancreas cells of the blood glucose increases, and the response is release of glucagon from pancreas 35781]Explanation / Answer
Answer:
Which of the following statements regarding glucose homeostatis is correct? After a meal.
b) Blood glucose increases, and the response is release of insulin from beta-cells of the pancreaes - correct option
What happens when you SKIP a meal in terms of glucose , insulin and alpha and beta cells? Not really sure where these cells are located ?
Answer:
When we consume meal, glucose is released from the carbohydrate in the food by hydrolysis. Non carbohydrate source (like amino acids, lactate) etc are also converted to glucose by gluconeogenesis. Glucose then gets transported to different tissues (from blood circulation).
To mantain homeostatis, glucose levels are maintained within a specified range. When we skip a meal, the blood sugar level drops (low blood sugar is called hypoglycemia)
Insulin is a peptide hormone produced and released from the beta-cells in the pancreas. Pancrease contain areas called as Islets of Langerhans that contains beta cells. Beta cells are involved in the synthesis and release of insulin. Insulin is released when the blood glucose level rises.
Alpha cells are also located in the islets in pancreas and are involved in the secretion of glucagon (a peptide hormone) leading to an increase in the concentration of the glucose in the bloodstream. Glucagon is released when the blood glucose levels falls to a low concentration.
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