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Why Are Vitamin a and Vitamin C Essential to Us? Give Their Important Sources. - Chemistry

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प्रश्न

Why are vitamin A and vitamin C essential to us? Give their important sources.

उत्तर

The deficiency of vitamin A leads to xerophthalmia (hardening of the cornea of the eye) and night blindness. The deficiency of vitamin C leads to scurvy (bleeding gums).

The sources of vitamin A are fish liver oil, carrots, butter, and milk. The sources of vitamin C are citrus fruits, amla, and green leafy vegetables.

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पाठ 14: Biomolecules - Exercises [पृष्ठ ४२३]

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एनसीईआरटी Chemistry [English] Class 12
पाठ 14 Biomolecules
Exercises | Q 20 | पृष्ठ ४२३

संबंधित प्रश्‍न

Which of the following vitamins is water soluble?

  1. A
  2. D
  3. E
  4. B

Vitamin ‘C’ belongs to the class of—

(a) Vitamins of aliphatic series

(b) Vitamins of aromatic series

(c) Vitamins of alicyclic series

(d) Vitamins of heterocyclic series

 


How are vitamins classified? Name the vitamin responsible for the coagulation of blood.


What are the sources of Vitamin C and Vitamin K?


Deficiency of which vitamin causes scurvy?


Define the following term:
Vitamins


The vitamins absorbed from intestine along with fats are ____________.


Which of the following B group vitamins can be stored in our body?


Match the vitamins given in Column I with the deficiency disease they cause given in Column II.

Column I (Vitamins) Column II (Diseases)
(i) Vitamin A (a) Pernicious anaemia
(ii) Vitamin B1 (b) Increased blood clotting time
(iii) Vitamin B12 (c) Xerophthalmia
(iv) Vitamin C (d) Rickets
(v) Vitamin D (e) Muscular weakness
(vi) Vitamin E (f) Night blindness
(vii) Vitamin K (g) Beri Beri
  (h) Bleeding gums
  (i) Osteomalacia

Assertion: Vitamin D can be stored in our body.

Reason: Vitamin D is fat-soluble vitamin.


Niacin is vitamin


The RBC deficiency is a deficiency disease of ______.


Thiamine and pyridoxine are also known respectively as ______.


Give a reason for the following observations:

Water soluble vitamins must be taken regularly in the diet.


Assertion (A): Vitamin C cannot be stored in our body.

Reason (R): Vitamin C is fat soluble and is excreted from the body in urine.


The vitamins which can be stored in our body are ______.


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