Question

which form of vitamin k is produced by bacteria in the large intestine?
multiple choice
phylloquinone
menaquinone
menadione
benzoquinone

Explanation:

Vitamin K has different forms. Phylloquinone (vitamin K1) is mainly obtained from plants. Menadione is a synthetic form. Benzoquinone is not a form of vitamin K relevant here. Menaguinone (vitamin K2) is produced by bacteria in the large intestine.

Answer:

Menaguinone