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
An endogenous chemical agent of disease is
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Uric acid
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Protein deficiency
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Vitamin deficiency
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Pollutants
A
Correct answer
Explanation
Endogenous chemical agents are those that originate from within the organism, tissue or cell. Endogenous chemical agents and genetic mutations are collectively called intrinsic or internal factors affecting human health. The diseases caused by intrinsic factors are called organic or metabolic diseases. Chemicals which may be endogenous are urea, uric acid, hormones and enzymes. Uric acid is produced within the body of human beings and if it does not get eliminated by kidneys, then it may result in a serious disease known as gout which is due to the accumulation of uric acid in joints.
So, the correct answer is 'Uric acid'.
The diseases caused by defects that are present right from the birth are known as
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hereditary diseases
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hormonal diseases
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genetic diseases
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congenital diseases
D
Correct answer
Explanation
Congenital diseases are anatomical or physiological abnormalities present since birth, e.g., haemophilia, colour blindness, sickle-cell anaemia, Down's syndrome, Turner's syndrome.
Prolonged thiamine deficiency in diet leads to
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Anaemia
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Beriberi
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Haemorrhage
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Pellagra
B
Correct answer
Explanation
Beriberi is a deficiency disorder of thiamine (vitamin B$ _{1}$) that affects many systems of the body, including the muscles, heart, nerves, and digestive system. B$ _{1}$ vitamin benefits include prevention of abnormal development of muscles and nerves, pricking and burning sensation in the toes and feet, leg cramps and atrophy or wasting of the muscles.
What is the most common cause of iron deficiency in lactating women?
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Inadequate intake of iron-rich foods
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Poor absorption of iron
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Increased blood loss
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All of the above
D
Correct answer
Explanation
Iron deficiency in lactating women can be caused by inadequate intake of iron-rich foods, poor absorption of iron, and increased blood loss.
Which nutrient deficiency is the most common cause of blindness in children?
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Vitamin A deficiency
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Iron deficiency
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Iodine deficiency
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Zinc deficiency
A
Correct answer
Explanation
Vitamin A deficiency is the leading cause of blindness in children, particularly in developing countries, due to its role in maintaining healthy vision.
What is the term for the condition resulting from an excessive intake of nutrients?
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Malnutrition
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Overnutrition
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Obesity
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Hypernutrition
B
Correct answer
Explanation
Overnutrition, also known as hypernutrition, refers to the condition resulting from an excessive intake of nutrients, often leading to health problems such as obesity and chronic diseases.
Which nutrient deficiency is the leading cause of intellectual impairment in children?
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Iodine deficiency
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Iron deficiency
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Zinc deficiency
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Vitamin B12 deficiency
A
Correct answer
Explanation
Iodine deficiency is the leading cause of intellectual impairment in children, as it is essential for proper brain development during pregnancy and early childhood.
What is the term for the condition resulting from an inadequate intake of calories and essential nutrients?
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Undernutrition
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Malnutrition
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Starvation
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Wasting
A
Correct answer
Explanation
Undernutrition, also known as malnutrition, refers to the condition resulting from an inadequate intake of calories and essential nutrients, leading to various health problems.
Which nutrient deficiency is the leading cause of anemia worldwide?
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Iron deficiency
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Vitamin B12 deficiency
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Folate deficiency
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Vitamin C deficiency
A
Correct answer
Explanation
Iron deficiency is the leading cause of anemia worldwide, particularly among women and children, due to its role in the production of red blood cells.
Which nutrient deficiency is the leading cause of goiter, a swelling of the thyroid gland?
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Iodine deficiency
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Iron deficiency
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Zinc deficiency
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Vitamin A deficiency
A
Correct answer
Explanation
Iodine deficiency is the leading cause of goiter, as iodine is essential for the production of thyroid hormones.
What is the term for the condition resulting from an inadequate intake of protein?
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Protein Deficiency
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Kwashiorkor
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Marasmus
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PEM
A
Correct answer
Explanation
Protein Deficiency refers to the condition resulting from an inadequate intake of protein, leading to various health problems, including stunted growth and weakened immune system.
Which nutrient deficiency is the leading cause of scurvy, a disease characterized by bleeding gums and impaired wound healing?
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Vitamin C deficiency
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Vitamin A deficiency
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Vitamin D deficiency
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Vitamin B12 deficiency
A
Correct answer
Explanation
Vitamin C deficiency is the leading cause of scurvy, as vitamin C is essential for the production of collagen, a protein that helps maintain healthy skin, bones, and blood vessels.
What is the term for the condition resulting from an inadequate intake of carbohydrates?
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Carbohydrate Deficiency
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Kwashiorkor
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Marasmus
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PEM
A
Correct answer
Explanation
Carbohydrate Deficiency refers to the condition resulting from an inadequate intake of carbohydrates, leading to fatigue, weakness, and impaired cognitive function.
Which nutrient deficiency is the leading cause of rickets, a bone disease characterized by soft and weakened bones?
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Vitamin D deficiency
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Calcium deficiency
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Phosphorus deficiency
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Magnesium deficiency
A
Correct answer
Explanation
Vitamin D deficiency is the leading cause of rickets, as vitamin D is essential for the absorption of calcium and phosphorus, which are necessary for bone mineralization.
What is the term for the condition resulting from an inadequate intake of fats?
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Fat Deficiency
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Kwashiorkor
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Marasmus
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PEM
A
Correct answer
Explanation
Fat Deficiency refers to the condition resulting from an inadequate intake of fats, leading to dry skin, hair loss, and impaired immune function.