Andrew presented to his doctor at the age of 13 with weight loss, decrease urination, fatigue, nausea, and unquenchable thirst. Andrew's doctor teste and found it was very high at 250 mg/dL. The normal blood sugar range is mg/dL. Andrew's doctor immediately started him on insulin at 11:00 am. Andrew's Blood Sugar Levels 300 250 200 150 100 50
Andrew presented to his doctor at the age of 13 with weight loss, decrease urination, fatigue, nausea, and unquenchable thirst. Andrew's doctor teste and found it was very high at 250 mg/dL. The normal blood sugar range is mg/dL. Andrew's doctor immediately started him on insulin at 11:00 am. Andrew's Blood Sugar Levels 300 250 200 150 100 50
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question

Transcribed Image Text:Andrew presented to his doctor at the age of 13 with weight loss, decreased energy levels, frequent
urination, fatigue, nausea, and unquenchable thirst. Andrew's doctor tested his blood glucose level
and found it was very high at 250 mg/dL. The normal blood sugar range is between 70 - 130
mg/dL. Andrew's doctor immediately started him on insulin at 11:00 am.
Andrew's Blood Sugar Levels
300
250
200
150
100
50
8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5.00 PM 6:00 PM 7:00 PM
Time
Based on the information, what is the best explanation for how the negative feedback mechanism
works to control the amount of sugar in Andrew's blood?
Glucose from the food stimulates the pancreas to produce more insulin to regulate blood sugar.
The pancreas produces insulin after a meal to decrease the amount of glucose in the blood to maintain
homeostasis.
The pancreas does not control homeostatic blood glucose levels by secreting insulin.
O Insulin production increases hunger which causes the blood glucose levels to elevate to maintain homeostasis.
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