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Multiple Choice
Which type of cell signaling is exemplified when antidiuretic hormone (ADH) travels through the bloodstream to reach its target cells?
A
Paracrine signaling
B
Synaptic signaling
C
Autocrine signaling
D
Endocrine signaling
Verified step by step guidance
1
Understand the concept of cell signaling: Cell signaling refers to the mechanisms by which cells communicate with each other to coordinate their functions. There are different types of signaling based on the distance between the signaling cell and the target cell.
Review the types of signaling: Paracrine signaling involves communication between nearby cells, synaptic signaling occurs in the nervous system where neurotransmitters are released across synapses, autocrine signaling involves a cell signaling itself, and endocrine signaling involves hormones traveling through the bloodstream to distant target cells.
Identify the key feature of the problem: The problem mentions antidiuretic hormone (ADH) traveling through the bloodstream to reach its target cells. This is a critical clue indicating the type of signaling.
Match the description to the correct signaling type: Endocrine signaling is characterized by hormones being secreted into the bloodstream and traveling to distant target cells, which matches the description of ADH in the problem.
Conclude that the correct answer is endocrine signaling based on the definition and the description provided in the problem.