Which of the following statements about receptor potentials is false? a. Odor molecules can act as stimuli. b. The receptor potential is carried by neuroglia. c. The receptor proteins respond to stimuli. d. They can trigger an action potential.
Which Of The Following Statements About Receptor Potentials Is FALSE
Answer to question 1
The correct answer is (b) The receptor potential is carried by neuroglia. Neuroglia are supporting cells of the nervous system. They produce myelin and nourish the cells that carry receptor potentials, but the neuroglia themselves do not carry the receptor potential. Choice (a) is incorrect because it is true that odor molecules can act as stimuli. Choice (c) is incorrect because it is true that receptor proteins respond to stimuli. Choice (d) is incorrect because it is true that receptor potentials can trigger an action potential when they reach the threshold value.
Answer to question 2
1. Which of the following statements about receptor potentials is FALSE?
Ans- The receptor potential is carried by neuroglia.
2. Which of the following is NOT a functional region of a neuron?
Ans- medullary region
Answer to question 3
Option C is the correct answer. Receptor potential not always prompts the release of a neurotransmitter that induces an associated neuron to generate an action potential rather receptor potential can work to trigger an action potential either within the same neuron or on adjacent neuron. Within the same neuron, a receptor potential can cause local current to flow to a region capable of generating an action potential by opening voltage gated ion channels. A receptor potential can also cause the release of neurotransmitters from one cell that will act on another cell, generating an action potential in the second cell. Receptor potential not always sufficient to produce an action potential. The generation of action potential depends on the temporal summation of successive receptor potentials.