Lecture 14 Vitamin K - MC

Question 1

Which of the following is NOT a naturally occurring form of Vitamin K?
A) Phylloquinone
B) Menaquinone
C) Menadione
D) All of the above are natural forms

Answer 1

C

Question 2

*Menadione differs from other forms of Vitamin K mainly because it:
A) Is only found in plant sources.
B) Has a tail and is used in animal feed.
C) Lacks a tail and is a synthetic version used in animal feed.
D) Activates more proteins than other forms.

Answer 2

C

Question 3

What is the primary function of Vitamin K in the body?
A) Regulation of blood sugar levels.
B) Enhancement of blood coagulation/clotting processes.
C) Promotion of vitamin A absorption.
D) Stimulation of immune responses.

Answer 3

B

Question 4

How does Vitamin K contribute to bone health?
A) By promoting the mineralization and maturation of bone.
B) By increasing bone density through calcium absorption.
C) By reducing bone resorption by osteoclasts.
D) By stimulating collagen synthesis in bone tissues.

Answer 4

A

Question 5

Vitamin K acts as a coenzyme in the activation of specific proteins involved in:
A) Muscle contraction and nerve transmission.
B) Blood coagulation and calcium metabolism in bones.
C) Hormone synthesis and regulation.
D) Digestion and metabolism of fats.

Answer 5

B