Visit this link (http://openstaxcollege.org/l/hormonebind) to watch an animation of the events that occur when a hormone binds to a cell membrane receptor. What is the secondary messenger made by adenylyl cyclase during the activation of liver cells by epinephrine?
To write:
The secondary messenger made by the adenylyl cyclase during the activation of liver cells by epinephrine.
Introduction:
Epinephrine is a hormone produced by the adrenal glands. It plays an important role in the fight-or-flight response by increasing the blood flow. Secondary messengers are the intracellular signaling molecules released by the cell in response to exposure to extracellular signaling molecules.
Explanation of Solution
The secondary messenger made by the adenylyl cyclase during the activation of liver cells by epinephrine is the 3', 5'- cyclic adenosine monophosphate (cAMP) which is an important secondary messenger for many other biological processes also. The epinephrine binds to the receptor outside the liver cell bringing a conformational change which in turn allows the binding of the G protein. This makes the adenylate cyclase and ATP to bind. The adenylate cyclase breaks down ATP into cAMP which then becomes in secondary messenger in the breakdown of glycogen to glucose.
Thus, cAMP is the secondary messenger produced during the breakdown of glycogen to glucose in the liver.
Want to see more full solutions like this?
Chapter 17 Solutions
Anatomy & Physiology
Additional Science Textbook Solutions
College Physics
Concepts of Genetics (11th Edition)
Human Anatomy & Physiology
Biology: Life on Earth with Physiology (11th Edition)
Campbell Biology (10th Edition)
Becker's World of the Cell (9th Edition)
- A hormone molecule binds to a receptor on a cell membrane. It doesnt enter the cell; rather, the binding activates a second messenger inside the cell that triggers an amplified response to the hormonal signal. Is the signaling molecule a steroid or a nonsteroid hormone?arrow_forwardGive two examples of feedback control of hormone activity.arrow_forwardWhat is the mechanism of action of a hormone that cyclic AMP as a second messenger?arrow_forward
- A physician sees a patient whose symptoms include sluggishness, depression, and intolerance to cold. After eliminating other possible causes, the doctor diagnoses a hormone problem. What disorder fits the symptoms? Why does the doctor suspect that the underlying cause is a malfunction of the anterior pituitary gland?arrow_forwardGenerally, a cell that is affected by a particular steroid hormone would be expected to have ________. enzymes that are activated or inactivated by the hormone's second messenger a receptor inside the cell that binds the hormone a cell-surface receptor that binds the hormone DNA sites that interact with the hormonearrow_forwardExplain how second messenger molecules work. Why use a second messenger rather than simply relying on a more direct hormone-stimulated transduction mechanism?arrow_forward
- Describe the sequence of events when peptide hormones bind to their receptors.arrow_forwardWhich of the following observations can be explained by the properties of hormone receptors? a) A certain tissue can react to more than one hormone b) A certain hormone affects only a specific tissue, not all tissues c) Some tissues react very quickly to a certain hormone, other tissues take many hours to react to the same hormonearrow_forwardExplain how a second messenger works. Why use a secondmessenger rather than simply relying on the original hormone to produce the desired effect?arrow_forward
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegeBiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning