Epinephrine Activates the Cyclic AMP Pathway in Liver Cells

question 10

Multiple Choice

Epinephrine activates the cyclic AMP pathway in liver cells. In this example, epinephrine is a ____________ and cAMP is a _____________.

• A) ligand, receptor
• B) first messenger, hydrophobic hormone
• C) second messenger, ion channel
• D) first messenger, second messenger
• E) enzyme, second messenger

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Definitions:

Brood Parasites

Organisms that rely on others to raise their young, often laying their eggs in the nests of unrelated species, which then unknowingly rear the parasitic offspring.

Endosymbionts

Organisms that live within the body or cells of another organism in a mutualistic relationship, often providing essential functions for their host.

Ectoparasites

Parasites that live on the external surface of a host, such as lice, ticks, and mites, often causing irritation or disease.

Mutualists

Organisms that engage in mutualism, a type of symbiotic relationship where both participants benefit from the interaction.