3. Epinephrine (adrenaline, the chemical secreted when you get a surge of excitement or nervousness for example) binds adrenergic receptors. If Epinephrine binds the alpha adrenergic receptor blood vessels constrict. If epinephrine binds a beta-2 adrenergic receptor, blood vessels dilate. What determined the cellular response; epinephrine or the adrenergic receptor? Group of answer choices epinephrine adrenergic receptor
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Step 1: Identify the two components involved in the interaction — epinephrine (the ligand) and the adrenergic receptor (the protein on the cell surface). Show more…
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Research has shown that epinephrine can trigger different effects in different cell types. This is because there are numerous structural derivatives/types of epinephrine. Different cell types have epinephrine receptors in their cytosol. It behaves as a transcription factor. Different cell types have the same epinephrine receptors on their plasma/surface membranes.
Keemin L.
Which of the following is true? Select one: a. Epinephrine binds to beta adrenergic receptors on smooth muscle cells only if alpha adrenergic receptors are present b. Norephinephrine causes vascular smooth muscle cell contraction by binding to both alpha and beta adrenergic receptors c. Parasympathetic nerve endings cause vasodilation in skeletal muscle blood vessels, which helps to increase blood flow to muscles during exercise d. None of the above is true
Adi S.
Epinephrine binds to Alpha-adrenergic receptors on the cell membrane of liver cells. Alpha-adrenergic receptors in the cytoplasm of liver cells. Beta-adrenergic receptors on the cell membrane of liver cells. Beta-adrenergic receptors in the cytoplasm of liver cells. Beta-adrenergic receptors in the nucleus of liver cells.
Madhur L.
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