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
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

Nitric oxide would no longer be produced

Smooth muscle cells could not be made to relax

All of these

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

Nitric oxide would no longer be produced

Smooth muscle cells could not be made to relax

All of these

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Cell Signalling and Transduction
The major second messengers are

All of these

cGMP

cAMP

DAG

All of these

cGMP

cAMP

DAG

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Cell Signalling and Transduction
In vasodilation, proper nerve signals sent to blood vessels cause

the release of nitric oxide from endothelial cells

reduced blood pressure

relaxation of smooth muscle cells

All of these

the release of nitric oxide from endothelial cells

reduced blood pressure

relaxation of smooth muscle cells

All of these

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Cell Signalling and Transduction
In paracrine signaling, the signaling molecules affects only

both (a) and (b)

None of these

target cells distant from its site of synthesis in cells of an endocrine organ

target cells close to the cell from which it was secreted

both (a) and (b)

None of these

target cells distant from its site of synthesis in cells of an endocrine organ

target cells close to the cell from which it was secreted

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Cell Signalling and Transduction
In terms of cell communication, what do bacterial pathogens such as cholera and anthrax have in common?

They prevent the production of key signaling molecules

They block the normal functioning of signal transduction mechanisms

They destroy the receptors for key signaling molecules

They alter the chemical structure of key signaling molecules

They prevent the production of key signaling molecules

They block the normal functioning of signal transduction mechanisms

They destroy the receptors for key signaling molecules

They alter the chemical structure of key signaling molecules

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Cell Signalling and Transduction
The signaling molecules called steroid hormones

never enter the blood of humans

are made in one location of the body but have their effects some distance away

bind to cell surface receptors to trigger chemical cascades

are hydrophilic and so cannot penetrate the plasma membrane

never enter the blood of humans

are made in one location of the body but have their effects some distance away

bind to cell surface receptors to trigger chemical cascades

are hydrophilic and so cannot penetrate the plasma membrane

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Cell Signalling and Transduction

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 The major second messengers are

Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause

Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only

Cell Signalling and Transduction In terms of cell communication, what do bacterial pathogens such as cholera and anthrax have in common?

Cell Signalling and Transduction The signaling molecules called steroid hormones

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
The major second messengers are

Cell Signalling and Transduction
In vasodilation, proper nerve signals sent to blood vessels cause

Cell Signalling and Transduction
In paracrine signaling, the signaling molecules affects only

Cell Signalling and Transduction
In terms of cell communication, what do bacterial pathogens such as cholera and anthrax have in common?

Cell Signalling and Transduction
The signaling molecules called steroid hormones