Three-year-old-Joshua spits out his broccoli, scrunches his face and shouts, "Yuck!" His mother can’t understand why he has such
a distaste for broccoli, because she finds it to be rather bland. Why might Joshua and his mother have such different reactions to the taste of broccoli? a. As we get older, the overall number of taste buds decreases.
b. The orbitofrontal cortex loses a significant number of neurons as we age.
c. Myelinated axons connecting to the medulla become unmyelinated as we age.
d. Hyperstimulation of taste buds in young children may produce the sensation of burning.
As we get older the number of taste buds decreases.
Explanation:
Gustatory cells or the taste buds contains the different sensory cells on the tongue. The papillae consists of all the taste receptors. The sweet, bitter, salty, umami and sour tastes are recognized by the receptors.
The different individuals have different taste because of the presence of the different taste buds. The number of the taste buds decreases the individual gets older. The children has more taste buds and can easily understand the taste of different things. Hence, Joshua dislikes the broccoli taste.
Anorexia nervosa is characterized by a strong desire to lose weight due to the fear of becoming thin.
Here the person is on a low caloric restriction diet, and the person often assumes that he/she is overweight even though the person is underweight.
In the given situation, Katie is skipping meals and throwing away food and constantly losing weight, all these are the characteristic symptoms of anorexia nervosa as described above.
The substance must be able to alter its physical characteristic (for example, its color) in accordance to a change in pH. One example of this is litmus paper, which becomes red under acidic conditions and blue under basic conditions.
