Cell Signalling and Transduction
Which of the following comes under the category of cell surface receptor?

All of these
G protein linked receptors
Ion-channel linked receptors
Enzyme linked receptors

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Cell Signalling and Transduction
A cell is known to respond to a particular signaling molecule. Which of the following must be true of this cell?

It is in the heart muscle
It contains the receptor for the signaling molecule
It is also the site of production for the signaling molecule
It is incapable of signal transduction

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Cell Signalling and Transduction
Which of the following is true about a hydrophilic signaling molecule?

Since it can enter the cell, it directly affects some specific cell process
It is a steroid
Its receptor is located in the cytosol of the target cell
It might trigger a signal cascade that causes some effect in a cell

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Cell Signalling and Transduction
cAMP and cGMP are derived from

None of these
GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively
ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively
ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively

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