The chemoreceptors of the tongue respond to monosaccharides (sugars), metal ions (salty tastes), alkaloids, and acids. which type of receptor do you think is the most sensitive? why?

The alkaloids refer to the toxin generated by the plants. They give greater sensitivity and are bitter in taste. The tongue comprises unique receptors for bitter taste at its back. When one taste something toxic or bad then the neurons of tongue transmit signals to the brain and the brain provides reaction that whether it is bad or good for the body to consume. The substances, which are bitter instigate the generation of IP3 from the taste cells. This further enhances the intracellular calcium levels that results in the discharging of the synaptic transmitter and the stimulation of the gustatory nerve fibers.

i am going to guess that it is co2.

answer: c

explanation: