Which of the Following Is True of Metabotropic Receptors

Multiple Choice

Which of the following is true of metabotropic receptors?

A) Metabotropic receptors conserve energy.
B) Metabotropic receptors are slower than ionotropic receptors.
C) Metabotropic receptors control a single ion channel.
D) Metabotropic receptors are closely associated with an ion channel.
E) Metabotropic receptors are faster than ionotropic receptors.