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
-
glucose
-
insulin
-
vitamin C
-
vitamin A
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.
-
Retinol
-
Calciferol
-
Riboflavin
-
Cyanocobalamin
D
Correct answer
Explanation
Deficiency of cyanocobalamine causes pernicious anaemia.
-
Deficiency of ptylin
-
Malnutrition
-
Anemia
-
Deficiency of ascorbic acid
-
Deficiency of adenosine deaminase
E
Correct answer
Explanation
It is an immunity disorder which causes SCID [Severe Combined Immunodeficiency].
-
nyctalopia
-
beriberi
-
dermatitis
-
rickets
A
Correct answer
Explanation
Nyctalopia or night blindness (inability to see in dim light) is a disease caused due to the lack of vitamin A.
-
Appendiceal cancer - malignancies of the vermiform appendix
-
Cholangiocarcinoma - bile ducts which drain bile from the liver into the small intestine
-
Adenoma - tumor of the epithelial tissue with glandular origin
-
Carcinoid tumor - enterochromaffin cells throughout the gut
-
Chronic myelogenous leukemia- primary intracranial tumor appearing mostly in patients with severe immunosuppression
E
Correct answer
Explanation
Correct Answer: Chronic myelogenous - primary intracranial tumor appearing mostly in patients with severe immunosuppression
-
vitamin A
-
vitamin B
-
vitamin C
-
vitamin D
-
none of these
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.
-
Xerophthalmia
-
Scurvy
-
Rickets
-
Beri beri
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.
-
Cancer of mammary glands
-
Cancer of bones
-
Cancer of lymphoid tissues
-
Cancer of connective tissues
C
Correct answer
Explanation
There is chronic enlargment of lymphocytes by lymph nodes and spleen.
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.
-
Kwashiorkor disease
-
Amoebiasis
-
Diabetes
-
Cancer
A
Correct answer
Explanation
Kwashiorkor is a severe form of malnutrition caused by a deficiency in dietary protein.
-
1, 2 and 4
-
1, 4 and 5
-
2, 3 and 4
-
2, 3 and 5
-
3, 4 and 5
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).
-
rickets
-
scurvy
-
beriberi
-
night blindness
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.
-
Coccidioides immitis
-
Blastomyces dermatitidis
-
Histoplasma capsulatum
-
Paracoccidioides brasiliensis
-
Candida
C
Correct answer
Explanation
H. capsulatum is a dimorphic fungus that exists as a mold in soil and as a yeast in tissue.
Candida and Cryptococcus are not dimorphic fungi they are true yeast.
A
Correct answer
Explanation
Vitamin B12 is essential for the production of red blood cells; its deficiency leads to megaloblastic anaemia.
Match the column – I (Vitamins) with column – II (disease associated with their deficiency):
| |
|
| Column – I |
|
|
Column – II |
| A. Vitamin B3 |
1. Haemorrhage |
| B. Vitamin D |
2. Rickets |
| C. Vitamin E |
3. Pellagra |
| D. Vitamin K |
4. Liver necrosis |
-
A - 1, B - 2, C - 3, D - 4
-
A - 2, B - 1, C - 4, D - 3
-
A - 4, B - 2, C - 1, D - 3
-
A - 3, B - 2, C - 4, D - 1
-
A - 4, B - 3, C - 2, D - 1
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.