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
  1. glucose

  2. insulin

  3. vitamin C

  4. vitamin A

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Diabetes mellitus involves problems with insulin - either insufficient production (Type 1) or insulin resistance (Type 2), not a deficiency of glucose or vitamins A or C. Insulin is the hormone that regulates blood glucose levels.

Multiple choice
  1. Deficiency of ptylin

  2. Malnutrition

  3. Anemia

  4. Deficiency of ascorbic acid

  5. Deficiency of adenosine deaminase

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is an immunity disorder which causes SCID [Severe Combined Immunodeficiency].

Multiple choice
  1. Appendiceal cancer - malignancies of the vermiform appendix

  2. Cholangiocarcinoma - bile ducts which drain bile from the liver into the small intestine

  3. Adenoma - tumor of the epithelial tissue with glandular origin

  4. Carcinoid tumor - enterochromaffin cells throughout the gut

  5. Chronic myelogenous leukemia- primary intracranial tumor appearing mostly in patients with severe immunosuppression

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct Answer: Chronic myelogenous - primary intracranial tumor appearing mostly in patients with severe immunosuppression

Multiple choice
  1. vitamin A

  2. vitamin B

  3. vitamin C

  4. vitamin D

  5. none of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rickets is a skeletal disorder that results in soft and weak bones in children. It is most commonly caused by a prolonged and severe deficiency of Vitamin D, which is essential for calcium absorption. Vitamins A, B, and C are associated with different deficiency diseases like night blindness or scurvy.

Multiple choice
  1. Xerophthalmia

  2. Scurvy

  3. Rickets

  4. Beri beri

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Xerophthalmia is a condition where the eyes fail to produce tears, often leading to corneal damage and blindness, caused by Vitamin A deficiency. Scurvy is caused by Vitamin C deficiency, Rickets by Vitamin D, and Beriberi by Vitamin B1.

Multiple choice
  1. Cancer of mammary glands

  2. Cancer of bones

  3. Cancer of lymphoid tissues

  4. Cancer of connective tissues

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There is chronic enlargment  of lymphocytes by lymph nodes and spleen.

Multiple choice
  1. A

  2. B

  3. C

  4. D

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin A is essential for the health of the retina and the production of rhodopsin, a pigment that helps the eyes see in low light. A deficiency in Vitamin A leads to night blindness, where the individual struggles to see in the dark. Prolonged deficiency can lead to more severe vision loss.

Multiple choice
  1. 1, 2 and 4

  2. 1, 4 and 5

  3. 2, 3 and 4

  4. 2, 3 and 5

  5. 3, 4 and 5

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Keratomalacia is an eye disorder that results from vitamin A deficiency. Hyperkeratosis is thickening of the stratum corneum. It can be caused by vitamin A deficiency or chronic exposure to arsenic. Nyctalopia (also known as night blindness) is a condition making it difficult or impossible to see in relatively low light. Night blindness may exist from birth, or be caused by injury or malnutrition (i.e. lack of vitamin A).

Multiple choice
  1. rickets

  2. scurvy

  3. beriberi

  4. night blindness

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin A deficiency leads to vision problems, most notably night blindness, where the eyes struggle to adjust to low light conditions.

Multiple choice
  1. A - 1, B - 2, C - 3, D - 4

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

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

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

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

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin B3 (Niacin) deficiency causes the disease pellagra in humans. Rickets is a softening of bones in immature mammals due to deficiency of vitamin D. Vitamin E deficiency in animals causes several disorders such as reproduction failure, liver necrosis, etc. Vitamin K deficiency leads to haemorrhagic conditions.