Registered Dietitian Practice Test

Climacteric fruits are unique in that they have the ability to continue ripening after being harvested. This is due to their production of ethylene gas, a natural plant hormone that plays a critical role in the ripening process. As climacteric fruits mature, they typically show a marked increase in respiration and gas exchange, which contributes to the ripening process even after they have been picked from the plant.

This characteristic is particularly advantageous for storage and distribution, as it allows climacteric fruits to be harvested at a time that ensures they can reach consumers in optimal condition, often enhancing their flavor, texture, and nutrient content.

In contrast, other characteristics such as moisture loss or light absorption are not defining traits of climacteric fruits. While loss of moisture can occur in various fruit types, it does not specifically characterize climacteric fruits. Similarly, while light absorption is important for photosynthesis in plants, it is not a relevant factor concerning the ripening of climacteric fruits post-harvest.