- Which of the following is not a symptom of diabetes mellitus?
a) Frequent urination
b) Weight loss
c) High blood sugar
d) Joint pain
Answer: d) Joint pain
Explanation:
Diabetes mellitus is characterized by frequent urination (polyuria), high blood sugar levels (hyperglycemia), and weight loss, among other symptoms. Joint pain is not a typical symptom of diabetes; it is more commonly associated with conditions like arthritis.
- Which of the following vitamins is necessary for the proper clotting of blood?
a) Vitamin A
b) Vitamin D
c) Vitamin K
d) Vitamin C
Answer: c) Vitamin K
Explanation:
Vitamin K is essential for the synthesis of proteins involved in blood clotting. Vitamin A is important for vision, Vitamin D for calcium metabolism, and Vitamin C for collagen formation and immune function.
- Which of the following diseases is transmitted by contaminated water?
a) Cholera
b) Tuberculosis
c) Dengue
d) Rabies
Answer: a) Cholera
Explanation:
Cholera is a waterborne disease caused by Vibrio cholerae, and it spreads through contaminated water. Tuberculosis is airborne, dengue is mosquito-borne, and rabies is transmitted through the bite of an infected animal.
- Which of the following is caused by a deficiency of iodine?
a) Anemia
b) Goiter
c) Rickets
d) Scurvy
Answer: b) Goiter
Explanation:
Goiter is an enlargement of the thyroid gland caused by iodine deficiency. Anemia is caused by a lack of red blood cells or hemoglobin, rickets by Vitamin D deficiency, and scurvy by Vitamin C deficiency.
- Which of the following is a symptom of leprosy?
a) Skin lesions and numbness
b) Hair loss
c) Muscle weakness
d) Shortness of breath
Answer: a) Skin lesions and numbness
Explanation:
Leprosy, caused by Mycobacterium leprae, leads to symptoms such as skin lesions, numbness, and muscle weakness. Hair loss can be associated with other conditions, and shortness of breath is not a typical symptom of leprosy.
- Which of the following diseases is caused by Mycobacterium leprae?
a) Leprosy
b) Tuberculosis
c) Syphilis
d) Typhoid
Answer: a) Leprosy
Explanation:
Leprosy, also known as Hansen’s disease, is caused by the bacterium Mycobacterium leprae. Tuberculosis is caused by Mycobacterium tuberculosis, syphilis by Treponema pallidum, and typhoid by Salmonella typhi.
- Which disease is transmitted through the bite of a tsetse fly?
a) Malaria
b) Sleeping sickness
c) Yellow fever
d) Dengue
Answer: b) Sleeping sickness
Explanation:
Sleeping sickness, or African trypanosomiasis, is transmitted by the tsetse fly and is caused by Trypanosoma parasites. Malaria is transmitted by Anopheles mosquitoes, yellow fever by Aedes mosquitoes, and dengue by Aedes aegypti mosquitoes.
- Which of the following diseases is not caused by a parasite?
a) Malaria
b) Amoebiasis
c) Chickenpox
d) Leishmaniasis
Answer: c) Chickenpox
Explanation:
Chickenpox is a viral infection caused by the Varicella-zoster virus. Malaria, amoebiasis, and leishmaniasis are caused by parasites like Plasmodium, Entamoeba histolytica, and Leishmania species, respectively.
- Which of the following diseases is associated with defective insulin production?
a) Diabetes mellitus
b) Hypothyroidism
c) Hyperthyroidism
d) Cushing’s syndrome
Answer: a) Diabetes mellitus
Explanation:
Diabetes mellitus occurs due to defective insulin production or insulin resistance, leading to high blood sugar levels. Hypothyroidism and hyperthyroidism are disorders of the thyroid gland, and Cushing’s syndrome is caused by excessive cortisol levels.
- Which of the following is an autoimmune disease?
a) Type 1 diabetes
b) Type 2 diabetes
c) Hypertension
d) Obesity
Answer: a) Type 1 diabetes
Explanation:
Type 1 diabetes is an autoimmune disease in which the immune system attacks and destroys insulin-producing beta cells in the pancreas. Type 2 diabetes is related to insulin resistance, and hypertension and obesity are not autoimmune diseases.
Leave a comment