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BIO NMDCAT Receptors
nmdcat.online July 7, 2026

The adequate stimulus for a specific sensory receptor is defined as the

A. Stimulus that produces the most intense sensation
B. Form of energy to which the receptor is most sensitive
✓
C. Minimum stimulus intensity required for detection
D. Only type of energy that can activate the receptor

📝 Explanation

The adequate stimulus is the specific form of energy (light, mechanical, chemical) to which a receptor is uniquely adapted and most sensitive, having the lowest threshold for activation. It is not the only energy that can activate it (e.g., a hard punch to the eye causes seeing "stars").

📖 Additional Information

  • Stimulus that produces the most intense sensation
  • Form of energy to which the receptor is most sensitive
  • Minimum stimulus intensity required for detection
  • Only type of energy that can activate the receptor

The adequate stimulus is the specific form of energy (light, mechanical, chemical) to which a receptor is uniquely adapted and most sensitive, having the lowest threshold for activation. It is not the only energy that can activate it (e.g., a hard punch to the eye causes seeing "stars").

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