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.
Answer: B
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At a neuromuscular junction
A) actin and myosin filaments slide past one another. B) intercalated discs are synthesized. C) neurotransmitters are released. D) troponin and tropomyosin exchange places.
The space between the presynaptic and postsynaptic neurons is called the synaptic knob
a. True b. False Indicate whether the statement is true or false
The Müllerian ducts persist in female fetuses and develop into the uterus and oviducts
Indicate whether the statement is true or false
One of the function of Sarcoplasmic Reticulum is in the regulation of intracellular calcium in muscle fibers?
a. true b. false