Biology

Deficiency Diseases and Disorders

722 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 disease 'Beri-Beri' is caused due to the deficiency of vitamin

  1. B

  2. A

  3. D

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Beri-Beri is a disease caused by deficiency of Vitamin B1 (thiamine). Since thiamine is part of the Vitamin B complex, the answer 'Vitamin B' is generally accepted, though it would be more precise to specify 'Vitamin B1' or 'thiamine'. Symptoms include nerve damage, muscle weakness, and cardiovascular problems.

Multiple choice

Primary immunodeficiencies are disorders in which, part of the body's immune system is missing or does not function normally. Primary immunodeficiency, producing susceptibility to infection by viruses and molds is due to the

  1. B-cell deficiency

  2. T-cell deficiency

  3. phagocyte deficiency

  4. complement deficiency

  5. eosinophil deficiency
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Production of cytokines and of cytotoxic T-cells are important in the protective response.

Multiple choice

Deficiency of iron causes

  1. Phylaria

  2. Malaria

  3. Anemia

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

Iron is essential for hemoglobin production in red blood cells. When iron levels are insufficient, the body cannot produce enough healthy red blood cells, leading to anemia - a condition characterized by fatigue, weakness, and pale skin. Malaria is a parasitic infection, while fluorosis is caused by excess fluoride intake.

Multiple choice

Which of the following diseases are caused due to deficiency of water soluble vitamins?

  1. Xerophthalmia
  2. Rickets
  3. Scurvy
  4. Beriberi
  5. Hyperglycaemia

  1. 1, 2 and 3

  2. 1, 3 and 5

  3. 2, 3 and 4

  4. 2, 4 and 5

  5. 3, 4 and 5
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct answer. All of these diseases are caused due to deficiency of water soluble vitamins. Scurvy: Caused due to deficiency of Vitamin C (Water soluble) Beriberi: Caused due to deficiency of Vitamin B1 (Water soluble) Hyperglycaemia: Caused due to deficiency of Vitamin B12 (Water soluble)

Multiple choice

What is the cause of pellegra?

  1. Deficiency of vitamin C

  2. Deficiency of vitamin B3 or niacin

  3. Deficiency of vitamin B1

  4. Deficiency of vitamin B7
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Deficiency of vitamin B3 causes pellagra in man.

Multiple choice

The deficiency of vitamin A causes

  1. malaria

  2. night blindness

  3. scurvy

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

Vitamin A deficiency is the primary cause of night blindness (nyctalopia). Vitamin A is essential for producing rhodopsin, a pigment in the retina that enables vision in low-light conditions. Malaria is caused by parasites, scurvy by vitamin C deficiency, and cholera by bacterial infection.

Multiple choice

Which of the following vitamin deficiency diseases is not correctly matched?

  1. Vitamin K - Scurvy

  2. Vitamin D - Deformities in bones

  3. Vitamin B - Beriberi

  4. Vitamin A - Night blindness
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin K - Scurvy is indeed incorrectly matched. Scurvy is caused by Vitamin C deficiency, not Vitamin K deficiency. Vitamin K is associated with blood clotting, and its deficiency causes bleeding disorders. The other options are correctly matched: Vitamin D with bone deformities (rickets), Vitamin B with beriberi, and Vitamin A with night blindness.