The document discusses calciferol, a fat-soluble pro-hormone related to vitamin D, highlighting its forms (D1, D2, D3, D4, D5) and structural differences between D2 and D3. It outlines sources such as sunlight, fish, eggs, and vegetables, as well as the functions of vitamin D in bone growth and immunity, and its role in calcium balance. Additionally, it poses questions about the differences between vitamin D types and the skin's reaction to sunlight.

1. BY: Maliha Firdous

2. Calciferol
Fat soluble
Pro-hormone

3. Forms
D1
D2
D3
D4
D5

4. STRUCTURAL DIFFERENCE
BETWEEN VITAMIN D2 AND D3

6. SOUR
CES
Sun
light
Fish
EggsVegetables
Orange

8. Functions
Bone
growth
Immunity
PTH
Calcium
balance

10. Difference between vitamin d vitamin
D2 and vitamin D3?
Why is vitamin D considered a pro
hormone?
What does sunlight react with
in our skin?

11. THANK
YOU!!!