Riboflavin
What is another name for riboflavin?
A. Vitamin B1
B. Vitamin B2
C. Vitamin C
D. Vitamin D
B. Vitamin B2
What is the chemical abbreviation for zinc?
A. Zi
B. Zc
C. Zn
D. Zg
C. Zn
Which body part produces Vitamin D when exposed to sunlight?
A. Heart
B. Skin
C. Lungs
D. Stomach
B. Skin
3. Which food has the most potent source of zinc?
A. Apples
B. Chicken
C. Oysters
D. Rice
C. Oysters
Vitamin D helps the body absorb which mineral?
A. Iron
B. Calcium
C. Sodium
D. Potassium
B. Calcium
Which deficiency symptom is inflammation of the tongue?
A. Cataracts
B. Cheilosis
C. Glossitis
D. Dermatitis
C. Glossitis
How is the physical appearance of zinc described?
A. Bright yellow metal
B. Bluish white metal
C. Dark gray powder
D. Red-orange metal
B. Bluish white metal
Which type of light helps the body produce Vitamin D?
A. UVB light
B. LED light
C. Infrared light
D. Red light
A. UVB light
Why are milk containers often opaque instead of clear glass?
A. To keep milk colder
B. Light can deactivate riboflavin
C. Glass increases riboflavin levels
D. Riboflavin makes milk sour
B. Light can deactivate riboflavin
Why are oysters considered an exceptional dietary source of zinc?
A. They contain vitamin C that boosts zinc production
B. A 90-gram serving provides about 15 mg of zinc
C. They contain more copper than zinc
D. Zinc from oysters cannot be lost during cooking
B. A 90-gram serving provides about 15 mg of zinc
Riboflavin transporter deficiency is primarily associated with:
A. Reduced conversion of tryptophan into niacin during digestion
B. Genetic mutations that impair cellular absorption of vitamin B2
C. Excessive oxidative stress caused by overproduction of free radicals
D. Failure of FMN and FAD to participate in ATP synthesis reactions
B. Genetic mutations that impair cellular absorption of vitamin B2
What are common physical signs of zinc deficiency?
A. Blurred vision and joint pain
B. Hair loss, diarrhea, and skin lesions
C. High blood pressure and dizziness
D. Muscle spasms and fever
B. Hair loss, diarrhea, and skin lesions
Which form of Vitamin D is plant-based?
A. Vitamin D1
B. Vitamin D2
C. Vitamin D3
D. Vitamin K
B. Vitamin D2
How does excess zinc contribute to copper deficiency?
A. Zinc destroys copper in the bloodstream
B. Zinc blocks copper production in bone marrow
C. Excess zinc stimulates metallothionein, which binds copper and prevents absorption
D. Zinc converts copper into an unusable form in the liver
C. Excess zinc stimulates metallothionein, which binds copper and prevents absorption
What condition occurs in breast-fed infants because of low zinc in maternal milk?
A. Wilson disease
B. Acrodermatitis enteropathica
C. Transient Neonatal Zinc Deficiency
D. Hemochromatosis
C. Transient Neonatal Zinc Deficiency
Which nutrient does riboflavin help convert tryptophan into?
A. Vitamin D
B. thiamin
C. Niacin
D. pantothenic acid
C. Niacin
Which maternal gene mutation is linked to Transient Neonatal Zinc Deficiency?
A. SLC39A4
B. SLC30A2
C. SLC33A
D. BRCA1
B. SLC30A2
What is the chemical formula for Vitamin D2?
A. C₂₈H₄₄O
B. C₂₈H₄₂O
C. C₂₇H₄₄O
D. C₂₈H₄₄O₂
A. C₂₈H₄₄O
What is the recommended daily allowance (RDA) of riboflavin for adult men?
A. 0.5 mg
B. 1.3 mg
C. 0.6 mg
D. 1.5 mg
B. 1.3 mg
Why is riboflavin considered an indirect antioxidant?
A. It destroys bacteria directly
B. It replaces vitamin C
C. It supports enzyme systems that neutralize free radicals
D. It absorbs UV radiation
C. It supports enzyme systems that neutralize free radicals
8. What is the chemical formula of riboflavin?
A. C₆H₁₂O₆
B. C₁₇H₂₀N₄O₆
C. C₂₇H₄₆O
D. C₁₂H₂₂O₁₁
B. C₁₇H₂₀N₄O₆
What is the main difference between Acrodermatitis enteropathica and Transient Neonatal Zinc Deficiency?
A. One affects adults and the other affects children
B. One is caused by excess zinc intake and the other by deficiency
C. One impairs intestinal zinc absorption, while the other results from low zinc in maternal milk
D. They are the same disorder with different names
C. One impairs intestinal zinc absorption, while the other results from low zinc in maternal milk
Vitamin D toxicity is usually caused by:
A. Sunlight exposure
B. Eating fish regularly
C. Excessive supplementation
D. Overconsumption of dairy products
C. Excessive supplementation
One cup of kefir contains about how much Vitamin D?
A. 50 IU
B. 100 IU
C. 300 IU
D. 600 IU
B. 100 IU
What is the chemical formula for Vitamin D3?
A. C₂₇H₄₄O
B. C₂₈H₄₄O
C. C₆H₁₂O₆
D. NaCl
A. C₂₇H₄₄O