NEET · BiologyHard
Which neurotransmitter is primarily responsible for the inhibitory postsynaptic potential (IPSP) in the adult mammalian spinal cord?
- A.Glutamate
- B.Acetylcholine
- C.Glycine
- D.Dopamine
Show correct answer & step-by-step solution
Correct answer: C — Glycine
Solution
- Inhibitory postsynaptic potentials involve hyperpolarization of the postsynaptic membrane.
- Glycine binds to its receptors on the postsynaptic neuron.
- This binding opens ligand-gated channels.
- The influx of ions makes the membrane potential more negative.
- Hence the answer is (C).
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Biology topics you need to revise.
Attempt & Track Free →More Nervous System practice questions
- The gap between two adjacent neurons is known as:
- Which of the following is considered the master gland of the endocrine system and is located at the base of the brain?
- Which part of the neuron receives impulses from other neurons?
- The resting membrane potential of a typical neuron is approximately:
- Which part of the human brain is primarily responsible for maintaining body balance and posture?
- During the resting state of a neuron, the axonal membrane is relatively more permeable to potassium ions and nearly impe
- Which part of the human brain is responsible for the regulation of body temperature, urge for eating and drinking, and e
- The transmission of a nerve impulse across a chemical synapse involves the release of neurotransmitters. What is the cor
- Which of the following cranial nerves is responsible for the movement of the eyeball and is classified as a motor nerve?
- The resting membrane potential of a neuron is approximately -70 mV. If the membrane potential changes to -55 mV, what is
- During the absolute refractory period of a neuron, which of the following states of the voltage-gated sodium channels pr
- During the repolarization phase of an action potential, the rapid efflux of potassium ions is primarily driven by which