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Cell Signalling and Transduction

Cell Signalling and Transduction
The major second messengers are

All of these
cGMP
cAMP
DAG

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Cell Signalling and Transduction
The enzyme that catalyzes the splitting of PIP2 into two molecules of inositol triphosphate (IP3) and diacylglycerol in cell signaling, is

phospholipase C
phosphodiesterase C
phosphokinase C
lipokinase

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Cell Signalling and Transduction
Small charged molecules, often biogenic amines function as

both (a) and (b)
hormones
none of these
neurotransmitters

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Cell Signalling and Transduction
Which of the following is a second messenger?

Both (a) and (b)
Phospholipase C
lnositol 1,4,5-triphosphate
Diacyl glycerol

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Cell Signalling and Transduction
Which of the following processes involve the combining of a message from one signaling molecule with that of another to either enhance or inhibit a cellular effect?

Signal transduction
Signal integration
Signal reception
Signal amplification

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Cell Signalling and Transduction
The hormone or ligand can be considered as

second messenger
both (a) and (b)
first messenger
none of these

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