Final answer:
Chemoreceptors are responsible for responding to the cologne smell.
Step-by-step explanation:
The type of receptors that are responding to the cologne smell are chemoreceptors. Chemoreceptors are sensory cells that respond to chemical stimuli, such as the molecules in the cologne that create the smell. They are responsible for our sense of taste and smell. In the case of the cologne smell, specific chemoreceptors in the nose are triggered by the odor molecules in the cologne, sending signals to the brain that result in the perception of the smell.