Which of the following are responsible for the detection of changes in environment?
Correct answer: A. Receptors
- A. Receptors
- B. Neurons
- C. Effectors
- D. All of these
Explanation
Receptors detect changes in the environment and convert them into nerve impulses or other signals. Neurons transmit those signals and effectors carry out the response, so choosing either of them confuses detection with transmission or action.
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About Receptors
Receptors are specialized cells or proteins that detect stimuli such as light, sound, pressure, temperature and chemicals, then initiate responses through sensory or hormonal pathways. Questions distinguish sensory receptors from effectors, compare receptor types, and examine stimulus conversion into nerve impulses, including the roles of rods, cones, chemoreceptors and mechanoreceptors.
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