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The principal effect on BV in everyday life is the organism's current diet, although many other factors such as age, health, weight, sex, etc. all have an effect. In short any condition which can affect the organism's metabolism will vary the BV of a protein source.
In pharmacology, bioavailability is a subcategory of absorption and is the fraction (%) of an administered drug that reaches the systemic circulation. [1]By definition, when a medication is administered intravenously, its bioavailability is 100%.
Mineralization increases the bioavailability of the nutrients that were in the decomposing organic compounds, most notably (because of their quantities) nitrogen, phosphorus, and sulfur. Whether the decomposition of an organic compound will result in mineralization or immobilization is dependent on its concentration proportionate to that of the ...
Estimates of bioavailability can also be obtained from chemical solid-phase soil extractions. [7] Fugacity modelling of bioavailability is based on the solubility and partitioning of compounds into aqueous and non-aqueous phases. [8] This model describes the tendency for contaminants to be dissolved in the soil solution.
It specifically affects plant nutrient availability by controlling the chemical forms of the different nutrients and influencing the chemical reactions they undergo. The optimum pH range for most plants is between 5.5 and 7.5; [ 3 ] however, many plants have adapted to thrive at pH values outside this range.
Some nutrients are specifically required for growth on top of nutrients required for normal body maintenance, in particular calcium and iron metabolism. [162] Childhood dietary patterns are influenced by various factors, including feeding challenges and nutritional needs, with significant long-term consequences.
The relationship between the biological and plasma half-lives of a substance can be complex depending on the substance in question, due to factors including accumulation in tissues, protein binding, active metabolites, and receptor interactions. [7]
Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...