Vitamin K

Question 1

Forms of Vit K

Answer 1

phylloquinone, menaquinone, menadione

Question 2

How is vitamin k stored/metabolized

Answer 2

absorbed in jejunum
incorporated into chlyomicrons and transported to liver
when diet is deficient in K, storage forms are transported through blood in lipoproteins

Question 3

Function of vitamin K

Answer 3

assists with carboxylation of other proteins
vitamin k is named for coagulation
promotes strong bones- interacts with proteins osteocalciun

Question 4

vitamin k requirements/toxicity/deficiency

Answer 4

men: 120
women: 90
no known adverse effects,
people taking anticoagulants should keep k consistent
deficiency: infants are born with limited amount of vitamin k