Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Biomolecules

Question:

Lack of Vitamin $B_1$ causes:

Options:

Beri beri

Rickets

Convulsions

Scurvy

Correct Answer:

Beri beri

Explanation:

The correct answer is Option (1) → Beri beri

Sl. No.

Name of Vitamins

Sources

Deficiency diseases

 1.

Vitamin A

Fish liver oil, carrots, butter and milk

Xerophthalmia (hardening of cornea of eye), Night blindness

 2.

Vitamin B1 (Thiamine)

Yeast, milk, green vegetables and cereals

Beri beri (loss of appetite, retarded growth)

 3.

Vitamin B2 (Riboflavin)

Milk, eggwhite, liver, kidney

Cheilosis (fissuring at corners of mouth and lips), digestive disorders and burning sensation of the skin.

 4.

Vitamin B6 (Pyridoxine)

Yeast, milk, egg yolk, cereals and grams

Convulsions

 5.

Vitamin B12

Meat, fish, egg and curd

Pernicious anaemia (RBCs deficient in haemoglobin)

 6.

Vitamin C (Ascorbic acid)

Citrus fruits, amla and green leafy vegetables

Scurvy (bleeding gums)

 7.

Vitamin D

Exposure to sunlight, fish and egg yolk

Rickets (bone deformities in children) and osteomalacia (soft bones and joint pain in adults)

 8.

Vitamin E

Vegetable oils like wheat germ oil, sunflower oil, etc.

Increased fragility of RBCs and muscular weakness

 9.

Vitamin K

Green leafy vegetables

Increased blood clotting time