Which of the Following Statements About Olfactory Receptors Is Not

question 59

Multiple Choice

Which of the following statements about olfactory receptors is not true?

• A) Stronger odours cause more olfactory receptors to respond or fire than weaker odours do.
• B) The axons of the olfactory receptor cells reach directly into the brain.
• C) There are at least 1000 different types of olfactory receptors for different odours.
• D) Olfactory neurons last a lifetime, and cannot be replaced once they are destroyed.

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