Question

question 10 1 pts question: which type of receptor is directly linked to ion channels and opens in response to neurotransmitter binding? g - protein - coupled receptor ionotropic receptor metabotropic receptor enzyme - linked receptor

Explanation:

To solve this, we analyze each option:

• G - protein - coupled receptors act via G - proteins, not direct ion channel linkage.
• Ionotropic receptors are directly linked to ion channels and open when neurotransmitters bind.
• Metabotropic receptors (same as G - protein - coupled in function here) act indirectly, not via direct ion channel linkage.
• Enzyme - linked receptors have enzymatic activity upon ligand binding, not direct ion channel linkage.

Answer:

B. Ionotropic receptor