1- True about signal transduction
signal is transmitted from the outside to the inside of the cell
way of action of most hormones
way of action of most drugs
all of the above

2- Have instantaneous cellular response (milliseconds)
ion channels
G-protein coupled receptors
transcription factors
guanylyl cyclase

3- Act by recruiting kinases
tyrosine kinase receptors
serine/threonine kinase receptors
tumor necrosis factor
cytokine receptors

4- The transforming growth factor receptor family is an example of
guanylyl cyclase receptors
tumor necrosis factor
serine/threonine kinase receptors
hematopoietic receptors

5- Converts GTP to cGMP
tyrosine kinase receptors
serine/threonine kinase receptors
hematopoietic receptors
guanylyl cyclase

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Answers:

1- True about signal transduction
Answer: all of the above ( signal is transmitted from the outside to the inside of the cell AND way of action of most hormones AND way of action of most drugs)

2- Have instantaneous cellular response (milliseconds)
Answer: ion channels

3- Act by recruiting kinases
Answer: cytokine receptors

4- The transforming growth factor receptor family is an example of
Answer: serine/threonine kinase receptors

5- Converts GTP to cGMP
Answer: guanylyl cyclase