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The roof of the nasal cavity has many tiny threads called olfactory hairs dangling through it. These hairs are the dendrites of chemoreceptors called olfactory cells. Chemicals in the air, called odorant molecules, dissolve in the mucus and are absorbed by the hairs. The olfactory cells send nerve impulses to the brain which intreprets them as a smell.

The function of olfactory cells is to

a- transmit nerve impulses to the brain

b- dissolve the odorant molucules in the air

c- function as dendrites of chemoreceptors

d- intrepret impulses as a smell

The Q is I answered 'a' because I read 'The olfactory cells send nerve impulses to the brain' on the passage but it turned out to be wrong and 'c' was the correct one. But my heart says I'm still the one who is right.

Can someone please read and see if your answer is same as mine and whether the tutor was wrong.

p/s : Odorant is American spelling and Odourant is British spelling. Am I correct? Emotion: tongue tied
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Hi,

The roof of the nasal cavity has many tiny threads called olfactory hairs dangling through it. These hairs are the dendrites of chemoreceptors called olfactory cells. Chemicals in the air, called odorant molecules, dissolve in the mucus and are absorbed by the hairs. The olfactory cells send nerve impulses to the brain which intreprets them as a smell.

The function of olfactory cells is to

a- transmit nerve impulses to the brain

b- dissolve the odorant molucules in the air

c- function as dendrites of chemoreceptors

d- intrepret impulses as a smell

The Q is I answered 'a' because I read 'The olfactory cells send nerve impulses to the brain' on the passage but it turned out to be wrong and 'c' was the correct one. But my heart says I'm still the one who is right.

Can someone please read and see if your answer is same as mine and whether the tutor was wrong. My answer was 'a'. Does 'c' also include the function of sending nerve impulses to the brain? If not, I'd ask your tuor whaat would happen to the creature if the cells did not peform the function of sending.

p/s : Odorant is American spelling and Odourant is British spelling. Am I correct? Yes. 'Odour' is BrE, 'odor' is AmE.

Good luck with your tutor.

Clive
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My answer was 'a'. Does 'c' also include the function of sending nerve impulses to the brain? If not, I'd ask your tuor whaat would happen to the creature if the cells did not peform the function of sending.

xxx

These hairs are the dendrites of chemoreceptors called olfactory cells. Chemicals in the air, called odorant molecules, dissolve in the mucus and are absorbed by the hairs

So it means that the hairs absorb those stuff and the cells send the data to brain. So what does that mean? Emotion: tongue tied I still think 'a' is correct because it's the cells that send the data not the hairs as they only absorb stuff like mucus Emotion: tongue tied What do you think?
Hi,

As I said, my answer was A.

Can you say that there are two functions, the absorbing and the sending? If so, the original question is not well-worded. It should ask 'What is the primary function ....'.

Clive