QUESTION 8 A neurotransmitter binds to and activates a Cl- channel. This neurotr

Question

QUESTION 8 A neurotransmitter binds to and activates a Cl- channel. This neurotransmitter is predicted to be 0 A. Excitatory O B. inhibitory ° C. Either excitatory or inhibitory QUESTION 9 An unknown neurological disorder results from the self-attack from one's own immune system. As it turns out, dopa can alleviate the symptoms. What can you conclude? O A. This disorder is Parkinson's disease. O B. The attacked neurons are dopaminergic. ° C. The attached neurons are cholinergic. ODThis disorder is Alzheimer's disease. QUESTION 10 According to our lectures, antagonist of nicotinic ACh receptor will cause which of the following symptoms? O A O B. Skeletal muscle tightening O C. Cardiac muscle paralysis Skeletal muscle paralysis D. Cardiac muscle tightening

Explanation / Answer

Answer 8:

The neurotransmitter is predicted as to be inhibitory.

Explanation:

Chlorine channel is a ligand-gated ion channel when neurotransmitter, a ligand binds to the receptor protein and stimulates the opening of a chloride-selective channel. The presence of neurotransmitter, enter a Chloride Channels into nonconducting and desensitized state i.e. hyperpolarize the membrane. Thus leads to the lowering of the membrane potential due to Cl- influx, cell,s firing threshold becomes low. That’s why this neurotransmitter is predicted as inhibitory.

Answer 9:

The attacked neurons are dopaminergic.

Explanation: Dopamine receptors have been found in cells of the innate immune response and also in cells of the adaptive immune response. So Dopa elevate the symptoms of autoimmunity.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.