On the basis of their physical properties, hormones fall into one of two categories. One category, called water-soluble hormones, includes hormones that are very soluble in water but relatively insoluble in lipids (e.g., epinephrine). The other category, called lipid-soluble hormones, includes hormones that are relatively insoluble in water but highly soluble in lipids (e.g., steroid hormones). Correlate hormone solubility with the location of receptors and the mode of action by classifying each characteristic as describing either water-solubule or lipid-soluble hormones. Water-soluble hormones cannot cross the plasma membrane bind to receptors on the outer surface of the cell have receptors that catalyze the formation of second messengers inside the cell have an internal mode of action Lipid-soluble hormones readily penetrate the plasma membrane act on target molecules or receptors directly
On the basis of their physical properties, hormones fall into one of two categories. One category, called water-soluble hormones, includes hormones that are very soluble in water but relatively insoluble in lipids (e.g., epinephrine). The other category, called lipid-soluble hormones, includes hormones that are relatively insoluble in water but highly soluble in lipids (e.g., steroid hormones). Correlate hormone solubility with the location of receptors and the mode of action by classifying each characteristic as describing either water-solubule or lipid-soluble hormones. Water-soluble hormones cannot cross the plasma membrane bind to receptors on the outer surface of the cell have receptors that catalyze the formation of second messengers inside the cell have an internal mode of action Lipid-soluble hormones readily penetrate the plasma membrane act on target molecules or receptors directly
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:On the basis of their physical properties, hormones fall into one of two categories. One category, called water-soluble hormones,
includes hormones that are very soluble in water but relatively insoluble in lipids (e.g., epinephrine). The other category, called
lipid-soluble hormones, includes hormones that are relatively insoluble in water but highly soluble in lipids (e.g.,
steroid hormones).
Correlate hormone solubility with the location of receptors and the mode of action by classifying each characteristic as
describing either water-solubule or lipid-soluble hormones.
Water-soluble hormones
cannot cross the plasma membrane
bind to receptors on the outer surface of the cell
have receptors that catalyze the formation of second messengers inside
the cell
have an internal mode of action
Answer Bank
Lipid-soluble hormones
readily penetrate the plasma membrane
act on target molecules or receptors directly
Expert Solution
Introduction
The mechanisms of hormone action differ due to their difference in solubilities. The hormones are signaling molecule which relay the different signals. These can act at the place of synthesis or at the far places after being transported via blood.
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