Question

true  false   A high concentration of a hormone in the blood triggers signal amplification in all body cells....

true  false   A high concentration of a hormone in the blood triggers signal amplification in all body cells.

true  false   A hormone must bind to a receptor to cause a response in a target cell.

true  false   Hormones can produce the same response in different target cells.

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Answer #1

1. A high cocentration of hormone of hormone in the blood triggers signal amplification in all body cells. - False

explanation:- high concentration of hormone does produce signal amplification in cell but not in all body. specific hormone produce its effect on cell where receptors for it is present on cell. for example insulin receptor only present in liver , muscle and fat cell.

2. A hormone must bind to receptor to cause a response in a target cell. - True

explanation:- only when hormone binds to receptor it activate signal transduction pathway and increase gene expression and produce its effect.

3. A hormone can produce the same response in different target cells. False

explantion:- different target cells have different receptor present on it so particular hormone might not act or produce different response in different target cells.

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