Examlex
Which of the following macromolecules leaves the nucleus of a eukaryotic cell through the pores in the nuclear membrane?
Acetylcholine
A common neurotransmitter released by cholinergic neurons, including motor neurons.
Tyrosine Kinase
An enzyme that catalyzes the transfer of a phosphate group from ATP to the amino acid tyrosine on a protein, playing a critical role in signal transduction pathways.
Sodium Gate
A protein channel in cell membranes that allows sodium ions to pass through, playing a key role in the generation and propagation of nerve impulses.
Ligand-Gated
Referring to ion channels that open in response to the binding of a chemical messenger (ligand), such as a neurotransmitter.
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