Which type of receptor detects changes in temperature?

• A. Photoreceptor
• B. Mechanoreceptor
• C. Thermoreceptor
• D. Chemoreceptor

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the function of each receptor type mentioned in the problem. Photoreceptors detect light and are involved in vision. Mechanoreceptors detect physical changes such as pressure, vibration, and touch. Chemoreceptors detect chemical stimuli, such as changes in pH or the presence of specific molecules. Thermoreceptors detect changes in temperature.
2. Step 2: Focus on the specific question, which asks about detecting changes in temperature. This narrows the options to the receptor type that specializes in sensing temperature changes.
3. Step 3: Recall that thermoreceptors are specialized sensory receptors located in the skin and other tissues that respond to temperature changes, either heat or cold.
4. Step 4: Eliminate the incorrect options based on their functions. Photoreceptors, mechanoreceptors, and chemoreceptors do not detect temperature changes.
5. Step 5: Conclude that the correct receptor type for detecting changes in temperature is the thermoreceptor.