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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Vitamin K is classified as which type of vitamin?

  1. Water soluble

  2. Fat soluble

  3. Amino acid

  4. Mineral

The correct answer is: Fat soluble

Vitamin K is classified as a fat-soluble vitamin, which means it dissolves in fats and oils and is generally stored in the body's fatty tissues and liver. Fat-soluble vitamins, including Vitamins A, D, E, and K, have specific roles in the body that require their absorption alongside dietary fats. Vitamin K plays a critical role in blood coagulation (clotting) and bone metabolism. It is necessary for the synthesis of certain proteins that mediate these functions and is essential for preventing excessive bleeding. As a fat-soluble vitamin, it is absorbed in the intestines along with fat, making it important to consume it with dietary fats to enhance its absorption. In contrast, water-soluble vitamins, such as the B vitamins and Vitamin C, do not require dietary fat for absorption and are not stored in significant amounts within the body. Minerals are inorganic elements essential for various bodily functions and are not classified as vitamins. Therefore, classifying Vitamin K as a fat-soluble vitamin is accurate because of its solubility and physiological roles.