Question

Which of the following is true of zinc?
a. Grains are the most reliable food sources of zinc.
b. Excess zinc can decrease copper absorption.
c. All of its functions involve it acting as a cofactor for enzymes.
d. It binds to most proteins in the body.

Answer 1

True statement for zinc is option B: Excess zinc can decrease copper absorption.

Long-term and excessive zinc exposure decreases the amount of copper that is absorbed from the digestive tract and results in hypocupremia. Many crucial human enzymes, including superoxide dismutase, cytochrome-c oxidase, and ceruloplasmin, contain copper as a cofactor or coenzyme.

Even though the body only requires trace amounts of zinc, nearly 100 enzymes depend on it to perform essential chemical reactions. It plays a crucial role in the production of DNA, cell growth, the synthesis of proteins, the repair of damaged tissue, and the maintenance of a strong immune system.

To know more about zinc functions, refer to the following link:

https://brainly.com/question/17075110

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