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Mechanism of Action of Lipid-Soluble Messengers

View the animation below, then complete the quiz to test your knowledge of the concept.






1The messenger in the lipid soluble messenger system is...
A)hydrophilic.
B)hydrophobic.
C)isotonic.
D)hypertonic.
E)isotonic.



2The messenger passes freely through the plasma membrane and...
A)enters the nucleus, where it binds to the DNA molecule.
B)enters the nucleus and binds to the RNA molecule.
C)enters the cytoplasm and binds to a ribosome.
D)attaches to a gated membrane protein.
E)attaches to a protein in the cytoplasm.



3The ultimate result of the lipid soluble messenger system is...
A)DNA molecules replicate, and produce a functional response.
B)DNA molecules replicate in preparation for mitosis.
C)the messenger binds with the RNA molecule, which then codes for proteins that produce a functional result.
D)proteins are coded for and synthesized to produce a functional result.
E)transport proteins are incorporated in the cytoplasm of the cell to produce a functional result.



4Lipid soluble messengers must bind to a transport protein to be transported by the blood.
A)True
B)False



5Lipid soluble messengers require a transport protein in order to pass through the plasma membrane.
A)True
B)False







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