Question

How does zinc deficiency affect the body?

a) A minor effect because zinc has only a limited role in the body.
b) Impairs the immune response, leading to increased infections.
c) Increases metabolism and appetite, leading to weight gain.
d) Reduces iron absorption because iron needs zinc for transport.

Answer 1

Zinc deficiency impairs the immune system leading to an increased risk of infections due to its critical role in protein synthesis, cell growth, and tissue repair. The correct answer is option b).

Step-by-step explanation:

Zinc deficiency significantly impairs the immune response, which can lead to an increased susceptibility to infections. Zinc is an essential trace element that plays critical roles in protein synthesis, cell growth, and tissue repair. It's important for the functioning of many enzymes and is vital for maintaining the health of the immune system.

Copper and manganese are other examples of trace metals that have important roles in the body, with copper being crucial for the activity of several proteins and manganese being required for proper oxygen metabolism. Cobalt, as part of vitamin B-12, is also vital even in small amounts.

Vitamin A, although not a metal, is another micronutrient critical to immune system development and function, with deficiencies leading to an increased risk of infections and visual problems. Nutritional deficiencies like those of zinc, copper, iron, and vitamin A can profoundly affect the immune system's ability to maintain homeostasis and combat infections.