Another could be the caffeine present in coffee and many other beverages. This may cause nervousness, stress and sometimes cardiac arrhythmias. Go back to question 1 or go on to question 2 . 2. Explain what flavor is. Use specific examples where appropriate.
Flavor is a combination of taste, odor, texture and common chemical sense.
Taste is the perception of higher molecular weight, hydrophilic, nonvolatile compounds usually requiring fairly direct contact with the source. In humans, this takes place in the oral cavity, mainly on the tongue. Odor is the sensing of lower molecular weight, hydrophobic, volatile compounds usually not requiring direct contact with the source. In humans, this takes place in the nasal cavity. The common chemical sense is a sensation, most often perceived in the delicate lining of the oral cavity.