The endocrine system incorporates feedback mechanisms that maintain homeostasis. Which of the following demonstrates negative feedback by the endocrine system? A) During labor, the fetus exerts pressure on the uterine wall, inducing the production of oxytocin, which stimulates uterine wall contraction. The contractions cause the fetus to further push on the wall, increasing the production of oxytocin. B) After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood glucose levels. C) At high elevation, atmospheric oxygen is scarcer. In response to signals that oxygen is low, the brain decreases an individual's rate of respiration to compensate for the difference. D) A transcription factor binds to the regulating region of a gene, blocking the binding of another transcription factor required for expression.

Question

Biology

Miller

30 March, 02:18

The endocrine system incorporates feedback mechanisms that maintain homeostasis. Which of the following demonstrates negative feedback by the endocrine system? A) During labor, the fetus exerts pressure on the uterine wall, inducing the production of oxytocin, which stimulates uterine wall contraction. The contractions cause the fetus to further push on the wall, increasing the production of oxytocin. B) After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood glucose levels. C) At high elevation, atmospheric oxygen is scarcer. In response to signals that oxygen is low, the brain decreases an individual's rate of respiration to compensate for the difference. D) A transcription factor binds to the regulating region of a gene, blocking the binding of another transcription factor required for expression.

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Eve Watts · Answer 1

Answer:. B) After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood glucose levels

Explanation:

Homeostasis is the ability to keep the conditions of it's internal environment constant, regardless of the external environment. it does this either by increasing the effect of a recieves stimuli (positive) or reducing the effect of the stimuli (negative). negative feedback mechanism is used by the body to restore it back to it's normal conditions. majority of homeostatic mechanisms are negative feedback.

For example the regulation of blood glucose levels which is regulated by the hormones, insulin and glycogen to keep it constant.

The failure of this homeostasis process would lead to diabetes