Lecture 16 Riboflavin - MC

Question 1

What forms does riboflavin typically take when it’s involved in biological systems?
A) Riboflavin is converted into amino acids.
B) Riboflavin remains unmodified in its original form.
C) Riboflavin is phosphorylated to form flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD).
D) Riboflavin is converted directly into carbohydrates.

Answer 1

C

Question 2

How does riboflavin react to exposure to light?
A) It becomes more potent.
B) It is very sensitive and prone to destruction.
C) It remains stable.
D) It is converted into a toxic compound.

Answer 2

B

Question 3

What is the structure of the riboflavin molecule?
A) One ring and a hydrocarbon tail.
B) Two rings linked by a chain.
C) Three rings on the head and a hydrocarbon tail called ribitol.
D) Four interconnected rings without a tail.

Answer 3

C

Question 4

In which foods is riboflavin primarily found?
A) Only in plant-based foods.
B) Equally distributed in plant and animal-based foods.
C) Mostly in foods of animal origin.
D) Exclusively in synthetic supplements.

Answer 4

C

Question 5

Where are the highest concentrations of riboflavin typically found in the body?
A) In the brain and muscles.
B) In the liver, kidneys, and heart.
C) Throughout the digestive tract.
D) In the skin and hair.

Answer 5

B

Question 6

What is the primary function of riboflavin in the body?
A) Enhancing oxygen transport and absorption.
B) Regulation of growth hormones.
C) Serving as a coenzyme for carbohydrate and fat metabolism.
D) Protecting cells from genetic damage.

Answer 6

C