This document discusses the fat soluble vitamins A, D, E, and K. It provides information on their chemical names, sources, functions, and deficiency disorders. Vitamin A is important for vision and is found in liver, eggs, and plants like carrots. Vitamin D aids in calcium absorption and is synthesized from sunlight exposure. Vitamin E functions in cell membrane integrity and vitamin K is required for blood clotting. The document also asks comprehension questions about the vitamins and requests a table summarizing their characteristics.

3. FAT SOLUBLE
VITAMINS

6. Vitamin -
• The chemical name of Vitamin A is Retinol.
• It is also called as Antixeropthalmic Vitamin.
• Sources - It is readily available in foods of Liver, eggs,
butter, whole milk, fish, meat, oils extracted from
fishes such as cod liver oil and shark liver oil.

7. • In plants vitamin ‘A’ is present in the form of
a carotene. In green leafy vegetable (Spinach
amaranth etc.,) other vegetable like carrots,
tomato, pumpkin, fruits like papaya and mango
and its converted into vitamin ‘A’ in our body.

8. Night bl indness: The Person cannot
see the objects in dim l ight and in
nights.

9. • The chemical name of vitamin ‘D’ is Calciferol.
• TherichsourceofVitamin‘D’ is sunlightandsunlight
has the capacity to convert cholesterol in our body
intoVitamin‘D’.

10.  It helps in the absorption of Ca & P by the intestine and its
deposition on the bones.
 Bone formation and maintenance.

11. Deficiency of vitamin ‘D’ leads to bone deformities
such as Rickets. (bent bones and knock knees)

12. • V i tami n ‘D’ p re s e n t i n fo o d s o f
animal or igin such as Mi lk,
Liver, Egg, Egg yolk, Butter,
Oi ls Ext racted f rom the Livers
of Fishes such as cod or shark.

13.  Deficiency leads to sterility in males and abortions
in females and also reduces the life span or R.B.C.
 Vitamin E is the least toxic of the fat soluble
vitamins. However, vitamin E being a mild anti-coagulant,
higher doses (above 1000 IU) of it may
delay clotting of blood.

14. Vitamin-
• Vitamin K is also known as Anti coagulation Vitamin.
• Functions: It is required for blood clotting.
• Sources: It is present in green leafy vegetables and in
cow milk, in man this vitamin is synthesized by the
bacteria present in the intestines.

15. Administration of large doses of vitamin K
produces Haemolytic anaemia and
Jaundice.
Deficiency results in long time for the
blood to clot and loss of more blood from
injuries

16. (1) Eating carrot is good for better vision.
(a) Give reason.
(b) Name a deficiency disorder found in children.
(2) A doctor advised a patient to include more of yellow fruits,
carrots and butter in his daily diet.
(a) Name the deficiency disorder found in that patient.
(b) Name the deficient nutrient in his body.
(c) What happens if he continues to take an excess amount of
this type of diet for a long time.

17. Draw a table showing vitamins and
their sources, functions and
deficiency disorders.