Receptor Types and Functions

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What is the primary function of nuclear receptors in cells?

To increase calcium concentration in the cytosol

To facilitate the release of neurotransmitters

To inhibit the activity of intracellular signalling pathways

To regulate gene expression and protein synthesis (correct)

What is the characteristic structure found in nuclear receptors?

Helix-loop-helix structure

Zinc finger structure (correct)

G-protein coupled receptor

Ligand-gated ion channel

Which type of receptor is activated by inositol triphosphate?

Steroid receptor

IP3 receptor (correct)

G-protein coupled receptor

Ryanodine receptor

Where are intracellular receptors commonly found?

Sarcoplasmic reticulum and endoplasmic reticulum Signup and view all the answers

What is the effect of ryanodine receptor activation?

Calcium-induced calcium release Signup and view all the answers

What is the main function of intracellular receptors?

To modulate intracellular signalling pathways Signup and view all the answers

Which type of receptor is involved in the regulation of protein synthesis?

Nuclear receptor Signup and view all the answers

What is the primary function of ligand-gated ion channels?

To allow ions to pass through the pore Signup and view all the answers

Which type of receptor has an extracellular ligand binding site and a pore for ions to pass through?

Ligand-gated ion channels Signup and view all the answers

What is the name of the receptor that has a clamshell/venus fly trap-like extracellular domain with ligand and allosteric binding sites?

Metabotropic glutamate receptor Signup and view all the answers

Which type of receptor is associated with pleiotropic effects?

Intrinsic enzyme receptors Signup and view all the answers

What is the name of the receptor that is activated by ATP and has a pore for ions to pass through?

P2X receptor Signup and view all the answers

How many transmembrane domains do rhodopsin-like receptors have?

7 Signup and view all the answers

What is the name of the receptor that is activated by neurotransmitters and neurohormones?

G-protein coupled receptors Signup and view all the answers

What is the function of metabotropic glutamate receptors?

To activate second messengers Signup and view all the answers