Which of the following does NOT describe a vitamin? They are essential organic s

Question

Which of the following does NOT describe a vitamin? They are essential organic substances. They are fat- or water-soluble. They are needed in relatively small amounts. They provide a rich source of energy The compound carnitine is required for fatty acid synthesis. glycogen breakdown. active transport of compounds into cells. transport of fatty acids into mitochondria. Most of our dietary sulfur is supplied by protein-rich foods. carbohydrates. vitamins. lipids. When body cells need more iron, the number of transferrin receptors on the cell surface increases. decreases. remains unchanged. Which of the following factors increases iron absorption? high intakes of zinc high stores of iron low gastric acidity increased need for iron A deficiency of dietary iodide is characterized by osteoporosis. goiter. dental caries. decreased glucose tolerance. Which factor limits absorption of dietary calcium? Phytic acid Chronic diarrhea Tannins in tea Vitamin D deficiency All of these choices are accurate.

Explanation / Answer

1) Vitamins are micronutrients which are required in relatively small amounts in our diet. They are an essential organic substances that are required for normal functioning of the body. Vitamins can be either fat soluble or water soluble. Fat soluble vitamins are A, D, E and K. Water soluble vitamins are B complex vitamins and vitamin C. They do not provide energy. Therefore, the correct answer for this question is option D.

The main energy sources are carbohydrates, fats and proteins.

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