Selenium (Se) Is an Element Required in the Human Body

question 54

Essay

Selenium (Se) is an element required in the human body in trace amounts.Selenium is obtained through the diet and levels of selenium found in food depend greatly on the soil where it is grown.Once ingested and absorbed as selenate, it can become incorporated into a small number of polypeptides.These selenoproteins are formed when selenium replaces an element that is found in 2 of the 20 "standard" amino acids.Using your knowledge of atomic structure, the periodic table in Figure 2-7, and the structure of amino acids found in Panel 2-5, deduce which two amino acids may be converted to "seleno" amino acids and used to make selenoproteins.

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Definitions:

Objective Measurement

The process of quantifying phenomena in a manner that is not influenced by personal feelings, interpretations, or prejudice.

High Power Distance

A cultural dimension that reflects the extent to which less powerful members of organizations and institutions accept and expect power to be distributed unequally.

Reward Systems

Structured programs within organizations designed to recognize and provide incentives for employee performance and contributions towards achieving business goals.

Fringe Benefits

Additional non-wage compensation provided to employees, such as health insurance, retirement plans, and paid time off.