Importance and Functions of Vitamin D Quiz

Test your knowledge on vitamin D's importance, sources, and effects. Explore its role in nutrition with these insightful questions.

#1

Which of the following is a primary source of vitamin D?

Oranges
Sunlight
Chicken
Potatoes
1 answered
#2

What is the main function of vitamin D in the body?

Regulation of calcium and phosphorus absorption
Enhancing muscle strength
Improving vision
Boosting immune system
#3

Which food is not a good source of vitamin D?

Salmon
Eggs
Mushrooms
Bananas
#4

In which season is it usually more difficult to get enough vitamin D from sunlight?

Spring
Summer
Autumn
Winter
#5

Which geographical locations are more prone to vitamin D deficiency due to limited sunlight exposure?

Equatorial regions
Polar regions
Tropical regions
Temperate regions
#6

In which form is vitamin D transported in the bloodstream?

Vitamin D2
Vitamin D3
Calcidiol
Calcitriol
#7

What is the role of vitamin D in calcium metabolism?

Decrease calcium absorption
Increase calcium excretion
Increase calcium absorption
No effect on calcium metabolism
#8

Which organ primarily produces vitamin D when exposed to sunlight?

Liver
Kidney
Pancreas
Skin
#9

What is the medical condition caused by vitamin D deficiency in children?

Rickets
Osteoporosis
Scurvy
Anemia
#10

Which type of ultraviolet (UV) radiation is responsible for vitamin D synthesis in the skin?

UV-A
UV-B
UV-C
UV-D
#11

What is the recommended daily intake of vitamin D for adults?

200 IU
400 IU
600 IU
800 IU
#12

What is the scientific name for vitamin D?

Ascorbic Acid
Ergocalciferol
Retinol
Riboflavin
#13

Which population group is at a higher risk of vitamin D deficiency?

Teenagers
Adults
Elderly
Children
#14

Which of the following is NOT a symptom of vitamin D deficiency?

Fatigue
Hair loss
Muscle weakness
Excessive thirst
#15

Excessive intake of vitamin D can lead to what condition?

Osteoporosis
Hypertension
Hypercalcemia
Diabetes
#16

Which hormone helps regulate the production of active vitamin D in the kidneys?

Insulin
Parathyroid hormone
Estrogen
Thyroxine
#17

Which organ primarily converts inactive vitamin D into its active form?

Liver
Kidneys
Pancreas
Intestines
#18

What is the term for the severe form of vitamin D deficiency in adults?

Osteomalacia
Osteogenesis Imperfecta
Osteoporosis
Osteoarthritis
#19

What is the term for the process by which vitamin D is synthesized in the skin?

Photosynthesis
Photolysis
Photodermatitis
Photogenesis
#20

Which of the following is a risk factor for vitamin D deficiency?

Regular sun exposure
Obesity
High dietary intake of vitamin D
Living in a tropical climate
#21

What is the maximum recommended daily intake of vitamin D for adults?

1000 IU
2000 IU
4000 IU
6000 IU

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