Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

Cell Signalling and Transduction
Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

changes the shape and thus the enzymatic activity of the proteins involved

allows hydrophilic signaling molecules to cross the plasma membrane

makes the receptor more likely to capture the signaling, molecule

None of these

changes the shape and thus the enzymatic activity of the proteins involved

allows hydrophilic signaling molecules to cross the plasma membrane

makes the receptor more likely to capture the signaling, molecule

None of these

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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

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
The binding of ligands to many G-proteins linked receptors leads to shortlived

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

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

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

increase 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

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

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

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Cell Signalling and Transduction
In the signal transduction mechanism known as protein phosphorylation

phosphorylated proteins act with enzymes to trigger the signal cascade

the signaling molecule binds to a surface receptor

receptor kinases play a key role in triggering the signal cascade

All of these

phosphorylated proteins act with enzymes to trigger the signal cascade

the signaling molecule binds to a surface receptor

receptor kinases play a key role in triggering the signal cascade

All of these

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Cell Signalling and Transduction
Cell signaling can be classified into

None of these

three distinct types based on the signaling molecules

two distinct types based on the distance over which the signaling molecules act

three distinct types based on the distance over which the signaling molecules act

None of these

three distinct types based on the signaling molecules

two distinct types based on the distance over which the signaling molecules act

three distinct types based on the distance over which the signaling molecules act

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Cell Signalling and Transduction
If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation?

It would be more difficult to increase blood flow and reduce blood pressure

All of these

Smooth muscle cells could not be made to relax

Nitric oxide would no longer be produced

It would be more difficult to increase blood flow and reduce blood pressure

All of these

Smooth muscle cells could not be made to relax

Nitric oxide would no longer be produced

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Cell Signalling and Transduction

Cell Signalling and Transduction Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

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?

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

Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation

Cell Signalling and Transduction Cell signaling can be classified into

Cell Signalling and Transduction If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation?

Cell Signalling and Transduction
Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it

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?

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

Cell Signalling and Transduction
In the signal transduction mechanism known as protein phosphorylation

Cell Signalling and Transduction
Cell signaling can be classified into

Cell Signalling and Transduction
If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation?