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Biology 2nd Baccalaureate

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9.1.3. Taste


The sense of taste is responsible for capturing chemicals dissolved in the water from saliva. Taste receptors are found in the mouth, especially on the tongue. Taste receptors are cells that group together to form taste buds, located on the taste buds that are responsible for the roughness of the tongue. Each taste bud is specialized in detecting a different flavor.

Un bebé de dos meses sacando la lengua

Lengua de niña de dos meses en las Fiestas del Pilar (Zaragoza)

It is important that you do not confuse taste with taste, since taste is a more complex sensation, in which, in addition to taste, the smell, touch, and temperature of the food influence. In fact, food does not taste the same when you have a cold, cannot breathe due to a blocked nose, or when you eat after the food has gone cold. The chemoreceptors of taste buds send nerve impulses to the brain where they are processed and translated into a sense of taste.

Although we can distinguish many flavors, they are really a combination of four basic flavors: sweetsaltyacid and bitter. As a curiosity, to say that recently confirmed the existence of more flavors, such as umami, the starchy (starched) and adipose (fat flavor).

Although these flavors are detected in all areas of the tongue, there are specific areas in which the taste buds better capture a certain type of flavor (or stimulus), so the tongue is divided into regions, according to the taste that is detected mainly.

Las papilas gustativas detectan sabores en distintas zonas de la lengua

Experiment: The myth of the language map.

Practice: Map of the language.

Experiments with your body: The tongue.

Video: Sense of taste.

Answer in your notebook

9.4.- How many flavors are we capable of detecting?


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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.