What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?

Cell Signalling and Transduction
What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?

PDGF; the blood

Insulin; beta cells of the pancreas

Insulin; many different cell types that use glucose for fuel

NGF; the nerves involved in simple reflexes

PDGF; the blood

Insulin; beta cells of the pancreas

Insulin; many different cell types that use glucose for fuel

NGF; the nerves involved in simple reflexes

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Cell Signalling and Transduction
Which of the following is a hormone whose action requires a cell surface receptor?

Nitric oxide

Growth factors

Adrenaline

Progesterone

Nitric oxide

Growth factors

Adrenaline

Progesterone

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

both (a) and (b)

neurotransmitters

hormones

none of these

both (a) and (b)

neurotransmitters

hormones

none of these

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Cell Signalling and Transduction
The signaling molecules called steroid hormones

are hydrophilic and so cannot penetrate the plasma membrane

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

never enter the blood of humans

bind to cell surface receptors to trigger chemical cascades

are hydrophilic and so cannot penetrate the plasma membrane

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

never enter the blood of humans

bind to cell surface receptors to trigger chemical cascades

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

both (a) and (b)

second messenger

first messenger

none of these

both (a) and (b)

second messenger

first messenger

none of these

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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 reception

Signal amplification

Signal transduction

Signal integration

Signal reception

Signal amplification

Signal transduction

Signal integration

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Cell Signalling and Transduction

Cell Signalling and Transduction What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?

Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor?

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

Cell Signalling and Transduction The signaling molecules called steroid hormones

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

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?

Cell Signalling and Transduction
What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?

Cell Signalling and Transduction
Which of the following is a hormone whose action requires a cell surface receptor?

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

Cell Signalling and Transduction
The signaling molecules called steroid hormones

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

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?