Biology

Deficiency Diseases and Disorders

706 Questions

Deficiency diseases and disorders are caused by a lack of essential nutrients, vitamins, and minerals in the diet or environment. This includes conditions like anemia, goitre, and night blindness. Practice these questions to prepare for general science exams.

Vitamin deficiency symptomsMineral deficiency disordersMalnutrition conceptsHormonal and specific diseases

Deficiency Diseases and Disorders Questions

Multiple choice

The deficiency of which of the following in the body causes bones and teeth decay?

  1. Carbohydrates and proteins

  2. Vitamin D and calcium

  3. Proteins and fats

  4. Iron and calcium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbohydrates and fats are the energy-providing foods and proteins are the basic building blocks of the body. Vitamin D also helps in maintaining the calcium requirements of the body. So, the deficiency of vitamin D and calcium in the body causes bones and tooth decay.

Multiple choice

Which of the following is the odd one out?

  1. Anemia

  2. Night blindness

  3. Brittle bones

  4. Malaria

  5. Rickets
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Malaria is caused by the Plasmodium parasite. The parasite can be spread to humans through the bites of infected mosquitoes. This is not a deficiency disease which is making it odd from others.

Multiple choice

Deficiency of Vitamin-A causes which of the following?

The various forms of Vitamin-A work as hormone and are present in the vertebrate eye in the form of visual pigment. Vitamin-A activity is seen in both carotenoids and retinoids.

  1. Pellagra

  2. Affects liver and central nervous system

  3. Dermatitis

  4. Xerophthalmia and dryness of eyes, mucous membrane and skin

  5. Haemorrhagic disease
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Xerophthalmia is a disease in which the cornea and conjunctiva of the eye get dried due to prolonged Vitamin-A deficiency. In this condition the eye fails to produce tears. Vitamin-A deficiency also causes dryness in mucous membrane, skin and delayed growth and development.

Multiple choice

Match the vitamins with their deficiency diseases

  1. Vitamin B2 A. Low and scurvy healing of wounds
  2. Vitamin A B. Pernicious anaemia
  3. Vitamin C C. abrasion at corners of lips, tongue and mouth
  4. Vitamin D D. night blindness
  5. Vitamin B12 E. Rickets

  1. 1 - C, 2 - D, 3 - A, 4 - E, 5 - B

  2. 1 - B, 2 - D, 3 - A, 4 - E, 5 - C

  3. 1 - C, 2 - A, 3 - D, 4 - E, 5 - B

  4. 1 - D, 2 - C, 3 - A, 4 - E, 5 - B

  5. 1 - C, 2 - D, 3 - E, 4 - A, 5 - B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin B2 acts as the coenzyme in reactions where oxidation and reduction take place. Its deficiency causes abrasion at corners of lips, tongue and mouth. Vitamin A occurs in the retina of vertebrates in the form of visual pigments. Its deficiency causes night blindness. Vitamin C is an antioxidant and its deficiency causes low and scurvy healing of wounds. Vitamin D maintains balance of calcium and its deficiency causes rickets due to improper mineralization of bones. Vitamin B12 acts as the coenzyme in metabolism of folic acid and its deficiency causes pernicious anaemia.

Multiple choice

Craniotabes is the sign of deficiency of

  1. vitamin K

  2. vitamin D

  3. vitamin E

  4. vitamin C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Craniotabes is caused by vitamin D deficiency in children. Craniotabes is seen mostly in the occipital and parietal bones. The bones become soft and when pressure is applied on them, they will collapse underneath it. When the pressure is relieved, the bones usually snap back into place.