Anatomy and Physiology II Practice Test

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Study for the Anatomy and Physiology II Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready to ace your exam!

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Which of the following vitamins are known to be water soluble?

B vitamins
K vitamins
E vitamins
D vitamins

The correct answer is: B vitamins

Water-soluble vitamins are those that dissolve in water, and they include the B vitamins and vitamin C. The B vitamins, which encompass a variety of compounds such as thiamine, riboflavin, niacin, pyridoxine, and others, are crucial for numerous metabolic processes, including energy production, nerve function, and the synthesis of red blood cells. These vitamins are not stored in significant amounts in the body, which means they need to be consumed regularly in the diet to maintain adequate levels. In contrast, the other choices represent fat-soluble vitamins, which are stored in the body's fatty tissues and liver. Vitamins K, E, and D are classified as fat-soluble, and while they are essential for various physiological functions, including blood clotting (vitamin K), antioxidant activity (vitamin E), and calcium metabolism (vitamin D), they do not share the characteristics of being water soluble. This distinction is important to understand in terms of dietary requirements and the body’s processing of these vitamins.