which of these receptors is not a membrane receptor? a cell membrane with different kinds of receptors. each letter marks a definite structure. letter a marks an integral receptor connected to a complex of proteins, and one of the proteins is bonded to gdp. letter b marks a large organic molecule located outside the cell. letter c marks a molecule that consists of two subunits with extracellular, integral, and intracellular parts. letter d marks an integral receptor consisting of two subunits that form a canal. letter e marks a receptor located in the cytoplasm. which of these receptors is not a membrane receptor? a cell membrane with different kinds of receptors. each letter marks a definite structure. letter a marks an integral receptor connected to a complex of proteins, and one of the proteins is bonded to gdp. letter b marks a large organic molecule located outside the cell. letter c marks a molecule that consists of two subunits with extracellular, integral, and intracellular parts. letter d marks an integral receptor consisting of two subunits that form a canal. letter e marks a receptor located in the cytoplasm. a c e d

Ion channel receptors, GPCRs, and enzyme-linked receptors are the three primary categories of cell-surface receptors. A channel through the plasma membrane opens when a ligand attaches to an ion channel receptor, allowing certain ions to pass through.

Which four types of membrane-bound receptors are there?

Based on their structure and mode of action, receptors can be classified into four basic groups: (1) G protein-coupled receptors (GPCRs), (2) ligand-gated ion channels, (3) enzyme-linked receptors, and (4) nuclear receptors.

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