TLS Online TPP Program

#Question id: 23781


Rhodopsin is comprised of 
a. An ketone of vitamin A
b. Opsin protein (GPCR)
c. An aldehyde of vitamin A
d. Retinal

#Unit 7. System Physiology – Animal
  1. a, b and c
  2. b, c and d
  3. b and c only
  4. a and d
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TLS Online TPP Program

#Question id: 11496

#Unit 7. System Physiology – Animal

Forced rapid breathing results in alkalization of the blood which would lead to which of the following changes in neuronal activity?

TLS Online TPP Program

#Question id: 11495

#Unit 7. System Physiology – Animal

In a neuron with a resting membrane potential of −65mV, the distribution of which ion across the neuronal membrane represents the greatest potential electromotive force (EMF)?

TLS Online TPP Program

#Question id: 11226

#Unit 7. System Physiology – Animal

At the neuromuscular junction, the neurotransmitter acetylcholine (ACh) is degraded by acetylcholinesterase. If a neurophysiologist applies the naturally occurring acetylcholinesterase inhibitor, onchidal (produced by the mollusc Onchidella binneyi), to a synapse, what would you expect to happen?

TLS Online TPP Program

#Question id: 11225

#Unit 7. System Physiology – Animal

What happens if twice as many inhibitory postsynaptic potentials (IPSPs) as excitatory postsynaptic potentials (EPSPs) arrive in close proximity at a postsynaptic neuron?

TLS Online TPP Program

#Question id: 11224

#Unit 7. System Physiology – Animal

How could you increase the magnitude of excitatory postsynaptic potentials (EPSPs) generated at a synapse?

TLS Online TPP Program

#Question id: 11223

#Unit 7. System Physiology – Animal

Of those listed, which event occurs first following a depolarizing stimulus applied to the presynaptic membrane of an axon terminal?