Which of the Following Statements Are True of Trace Elements

question 258

Multiple Choice

Which of the following statements are true of trace elements? (Read carefully and select all of the correct statements.)

• A)Iron is part of the hemoglobin in RBCs.
• B)Vitamin B₁₂ contains the mineral copper.
• C)The transmission of nerve impulses depends on sodium and potassium.
• D)Cobalt is needed for the hormone thyroxine.
• E)Phosphorus is part of DNA and RNA.
• F)The mineral necessary for blood clotting is iodinE.
• G)The mineral that helps store oxygen in muscle cells is magnesium.
• H)Sulfur is part of some proteins.

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Definitions:

Adipose Tissue

A type of connective tissue that stores fat and provides insulation and cushioning for the body.

Epidermis

The outermost layer of cells in plants and animals, serving as a protective barrier against environmental damage.

Packet Switching

A method of transmitting data in which the data is broken into packets before being sent over a network.

Circuit Switching

A telecommunications method that establishes a dedicated physical path between two points for the duration of the connection.