Home › ICSE Class 8 › biology › Diseases and First Aid › Pellagra is a deficiency disease caused by the l…
Pellagra is a deficiency disease caused by the lack of:
A{'text': 'Vitamin B1 (thiamine)'}
B{'text': 'Vitamin C (ascorbic acid)'}
C{'text': 'Vitamin D (cholecalciferol)'}
D{'text': 'Vitamin B3 (niacin)'}
Answer & Solution
Correct answer: D. {'text': 'Vitamin B3 (niacin)'}
1. Pellagra presents with the 3 D's: dermatitis, diarrhoea and dementia.
2. It is caused by a chronic deficiency of **Vitamin B3 (niacin)**.
3. Vitamin B1 deficiency causes beri-beri; Vitamin C deficiency causes scurvy; iron deficiency causes anaemia.
4. Hence the correct deficient nutrient is **Vitamin B3 (niacin)**.
_Source: Selina Concise ICSE Class 8 Biology Ch 8 "Diseases and First Aid", Deficiency diseases section_
Related questions
The Salk polio vaccine is best described as:For a superficial burn, the appropriate first aid is to:Haemophilia and thalassemia are best classified as which type of disease?Edward Jenner's smallpox vaccine worked on which principle?A vaccine prepared by inactivating a bacterial toxin with formaldehyde so the body forms aJaundice — yellowing of the eyes, skin and urine — is most often a sign of:Tuberculosis (TB) is caused by:Beri-beri results from a deficiency of: