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Which of these is incorrect?
A. Most extracellular signal molecules specifically bind to a single type of receptor
B. For a given signaling molecule, every cell will have the receptor for that molecule
C. Different cell types may respond to the same signal molecule in different ways
D. Cell "relay" systems for signaling can cause more than a single cell response
E. Cells may respond to multiple, different signals that converge and integrate with each other

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Answer:

The statement that is incorrect is B. For a given signaling molecule, every cell will have the receptor for that molecule

Explanation:

Receptors can be described as proteins which are specific to different molecules called signaling molecules. For a cell to respond to any changes, it should be able to receive and progress signals.

For example, dopamine will be recognized by a dopamine receptor.

When a receptor recognizes and binds the signal molecule, conformational changes are made init which will initiate response.

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