Which of the following nutrients are linked together by chemical bonds? (Select all that apply)
Storage of Nutrients
Nutrients are stored in the body in their polymeric form because if there is a complex compound from the simpler nutrients, it is unable to move out of the cell easily. The storage of nutrients occurs in this process which is used up when there is a requirement of energy. This is why nutrient storage is so important in the system so that it can be used later for metabolic processes.
Answer and Explanation:
The nutrients which are linked together by chemical bonds are (b) proteins, (c) lipids, (d) carbohydrates.
There are many nutrients which are present in the polymeric form which needs to be broken down into simpler forms before they are absorbed. This is why digestion is important so that all these nutrients are at first broken down into simpler forms before they are absorbed by the system. The amino acids are held together by the peptide bonds. The lipids and carbohydrates are also present in their polymeric structure in food which is held together by chemical bonds. The lipids are converted to free fatty acids, proteins are converted to peptides and at last into amino acids and the carbohydrates are brought back to the monosaccharide level. This process of breaking down is completed by the digestive enzymes. But minerals are present mainly in their ionic form and not as a bonded structure.
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from Health and WellnessChapter 10 / Lesson 9