Question

1. 1. To maintain appropriate blood levels of calcium and phosphate, you must have fully functioning

   a)kidney, thyroid, intestines

   b )stomach, adrenal glands, kidneys

   c) colon, thyroid, adrenal glands

   d) intestines, bones, kidneys

   2. What is not a major contributor of iodine in the US diet?

   a) dried beans and peas

   b) commercial diary products

   d) commercially prepared bread

   d) iodized salt                                                                                  

   3. --- is the protein responsible for binding to zinc when there is a high zinc intake in the diet

   a)zinc binding enzyme

   b) zinc transporting enzyme

   c) zincothlonein

   d) metallothionein

Answer 1

Ans) 1 a. Kidney, thyroid, intestine

Explaination:

The thyroid gland regulates the body's metabolism, while parathyroid glands regulate calcium levels and have no effect on metabolism. Parathyroid hormone (PTH) has a very powerful influence on the cells of your bones by causing them to release their calcium into the bloodstream.

However, in people with severe kidney dysfunction, calcium combines with phosphate, which lowers calcium levels in the blood (a disorder called hypocalcemia). Low calcium can cause muscle cramps and spasms but also causes an increase in parathyroid hormone levels, resulting in bone weakness and other problems.

2) c) commercial prepared breads

Explaination:

Dairy products, especially milk, and grain products are the major contributors of iodine to the American diet

- Includes a variety of protein foods, including seafood, lean meats and poultry, eggs, legumes (beans and peas), nuts, seeds, and soy products. Some fish contain high amounts of iodine. Eggs are also good sources of iodine. Limits saturated and trans fats, added sugars, and sodium.

3) d) metallothionein

Explaination:

- High intake of zinc induces the intestinal synthesis of a copper-binding protein called metallothionein (see the article on Copper). Metallothionein traps copper within intestinal cells and prevents its systemic absorption (see Wilson's disease).