Which of the following is responsible for sending flavor messages to the brain?
the tongue
the papillae
the taste receptors
the taste buds

The answer is The taste receptors.

Explanation:

Taste can be defined as the ability to detect substances through taste receptors (which are responsible for transmitting taste signals to the brain) or as the body sense that allows the detection of dissolved chemicals in the mouth, usually from food. The tongue is covered by approximately 10,000 taste buds or flavor receptors, which are grouped into four types:

1) sweet

2) acid.

3) salty.

4) bitter.

Each of these receptors are more concentrated in certain regions of the tongue surface.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

if you listed your answers right then i believe your answer is b.