Depolarization of a postsynaptic neuron in response to a neurotransmitter is called an ___ postsynaptic potential.

Fill in the blank(s) with the appropriate word(s).


excitatory or excited

Anatomy & Physiology

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Proteins that mediate or catalyze reactions in which the covalent bonding of the reactant molecules changes are called substrates.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Once a ligand binds to a receptor-enzyme,

A) The catalytic domain interacts with extracellular components. B) The catalytic domain interacts with intracellular components. C) The ligand-binding domain is phosphorylated. D) The ligand-binding domain is dephosphorylated.

Anatomy & Physiology

Small organs associated with lymphatic vessels are termed ________

A) lymph follicles B) lymph nodes C) axillary nodes D) None of the listed responses is correct.

Anatomy & Physiology

A coiled fibrous protein in connective tissue that is stretchy is called

A. hyaluronic acid. B. proteoglycan. C. elastin. D. collagen. E. a reticular fiber.

Anatomy & Physiology