Final answer:
Phylloquinone, menaquinone, and menadione are all forms of vitamin K which is crucial for blood clotting and can be found in foods like green leafy vegetables, and produced by bacteria in the human intestines.
Step-by-step explanation:
Phylloquinone, menaquinone, and menadione are all forms of vitamin K. Vitamin K is essential for blood clotting and is found in various forms such as vitamin K1 (phylloquinone), found in plants, and vitamin K2 (menaquinone), which is synthesized by bacteria in the human intestines. Menadione, or vitamin K3, is a synthetic compound used as a supplement.
Vitamin K can be obtained through a diet that includes green leafy vegetables like spinach and cabbage, cauliflower, soybean, and wheat germ. Although animal products contain lower amounts of vitamin K, small quantities are present in milk and eggs. These help in the vital function of clotting blood and preventing hemorrhages.
It is noteworthy that vitamins are covalently bonded molecules that often have formal chemical names different from the commonly known names, and they function as coenzymes, which are crucial for various bodily functions.