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?

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

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

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Cell Signalling and Transduction
Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?

Because nitric oxide cannot cross cell membranes and enter the blood

Because other body tissues use a different signaling molecule

None of these

Because nitric oxide breaks down quickly and thus cannot travel far

Because nitric oxide cannot cross cell membranes and enter the blood

Because other body tissues use a different signaling molecule

None of these

Because nitric oxide breaks down quickly and thus cannot travel far

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Cell Signalling and Transduction
Simple nerve reflexes use signaling molecules called

nitric oxides

proteases

neurotransmitters

G proteins

nitric oxides

proteases

neurotransmitters

G proteins

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Cell Signalling and Transduction
The signaling molecules called steroid hormones

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

never enter the blood of humans

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

neurotransmitters

none of these

hormones

both (a) and (b)

neurotransmitters

none of these

hormones

both (a) and (b)

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Cell Signalling and Transduction
Two key organizing principles for large multicellular organisms are

communication between cells and simple nerve reflexes

cell specialization and communication between cells

simple nerve reflexes and cell specialization

prokaryotic cell structure and cell specialization

communication between cells and simple nerve reflexes

cell specialization and communication between cells

simple nerve reflexes and cell specialization

prokaryotic cell structure and cell specialization

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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 Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?

Cell Signalling and Transduction Simple nerve reflexes use signaling molecules called

Cell Signalling and Transduction The signaling molecules called steroid hormones

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

Cell Signalling and Transduction Two key organizing principles for large multicellular organisms are

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
Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?

Cell Signalling and Transduction
Simple nerve reflexes use signaling molecules called

Cell Signalling and Transduction
The signaling molecules called steroid hormones

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

Cell Signalling and Transduction
Two key organizing principles for large multicellular organisms are