Why Are Olfaction and Gustation Called Chemical Senses

question 23

Multiple Choice

Why are olfaction and gustation called chemical senses?

• A) Neither one has sensory receptors that respond to molecules in the food we eat or in the air we breathe.
• B) Because they are unrelated to biological senses.
• C) They have sensory receptors that respond to molecules in the food we eat or in the air we breathe.
• D) We cannot use these senses without the presence of specific chemicals in the body.

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