The food molecules that cannot be ________ need to be eliminated from the body.
http://training.seer.cancer.gov/anatomy/digestive/
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420
so whats the answer then ?
To answer this question, we need to understand what happens to food molecules in the body and how they are eliminated.
When we consume food, it is broken down into smaller molecules through the process of digestion. These smaller molecules, such as glucose, amino acids, and fatty acids, can be absorbed by the body and used for various metabolic processes.
However, there are certain food molecules that cannot be broken down or used by the body. These molecules include dietary fiber, certain types of fats, and certain types of proteins.
Dietary fiber, found in fruits, vegetables, and whole grains, cannot be broken down by the digestive enzymes in our body. Instead, it passes through our digestive system relatively intact. Although it cannot be absorbed or used by the body for energy, it plays an important role in maintaining digestive health.
Certain types of fats, such as saturated fats, may also be challenging for the body to break down. These fats are often found in animal products like meat and dairy, as well as some processed foods. While our body can digest and absorb fats to a certain extent, excessive intake of saturated fats can have negative health effects and should be limited.
Similarly, there may be certain types of proteins that the body cannot fully utilize. Proteins are made up of amino acids, which are the building blocks for many important structures and processes in the body. However, there are certain types of proteins, such as those found in some plant foods, that may be harder for our body to digest and absorb due to differences in their amino acid composition.
To eliminate the food molecules that cannot be broken down or used by the body, the digestive system works to excrete them as waste. This waste includes undigested fiber, fats, and proteins, which are eliminated through bowel movements.
In summary, the food molecules that cannot be broken down or used by the body, such as dietary fiber, certain types of fats, and certain types of proteins, need to be eliminated through the process of digestion and excretion.