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

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

ANSWER DOWNLOAD EXAMIANS APP

Cell Signalling and Transduction
The binding of ligands to many G-proteins linked receptors leads to shortlived

increase in the concentration of certain extracellular signaling molecules called first messenger
decrease in the concentration of certain extracellular signaling molecules called first messenger
decrease in the concentration of certain intracellular signaling molecules called second messenger
increase in the concentration of certain intracellular signaling molecules called second messenger

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP