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Home Q & A Board Biology-Related Homework Help General Biology
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peaches+cream peaches+cream
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9 years ago
A persons pituitary gland is secreting insufficient amounts of tyroid-stimulating hormone (TSH). This will result in:

A. greater production of thyroxine
B. decreased metabolic rate
C. excessive growth
D. further reduction of TSH secretion

*I think the answer is A?*
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wrote...
#1
Educator
9 years ago
TSH stimulates the thyroid gland to secrete the hormone thyroxine (T4), which has only a slight effect on metabolism. T4 is converted to triiodothyronine (T3), which is the active hormone that stimulates metabolism. About 80% of this conversion is in the liver and other organs, and 20% in the thyroid itself.
peaches+cream Author
wrote...
#2
9 years ago
So this would result in excessive growth..?
wrote...
#3
9 years ago
Quote from: peaches+cream (9 years ago)
B. decreased metabolic rate
Biology - The only science where multiplication and division mean the same thing.
peaches+cream Author
wrote...
#4
9 years ago
Can you explain why it would decrease? Im still not fully understanding..
wrote...
#5
Educator
9 years ago
TSH stimulates the thyroid gland to secrete the hormone thyroxine (T4), which has only a slight effect on metabolism. T4 is converted to triiodothyronine (T3), which is the active hormone that stimulates metabolism.
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