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Human Health and Disease Test - 49

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Human Health and Disease Test - 49
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  • Question 1
    1 / -0
    Rigorous physical exercise may cause 
    Solution

  • Question 2
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    Culex causes the disease
    Solution
    Culex is a genus of mosquito and is important in that several species serve as vectors of important diseases, such as West Nile virus, filariasis, Japanese encephalitis, St. Louis encephalitis and avian malaria.
  • Question 3
    1 / -0
    The active molecule that helps to initiate inflammatory response when mast cell degranulate is
    Solution
    Histamine is an organic nitrogen compound involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter. Histamine triggers the inflammatory response. As a part of an immune response to foreign pathogens, histamine is produced by basophils and by mast cells found in nearby connective tissues. Histamine increases the permeability of the capillaries to white blood cells and other proteins, in order to allow them to engage foreign invaders in the infected tissues. It is found in virtually all animal body cells.
  • Question 4
    1 / -0
    Which disease is spread by activation of oncogenes?
  • Question 5
    1 / -0
    HIV virus contains 
    Solution
    AIDS is caused by Human Immunodeficiency Virus (HIV). It has a single stranded RNA with a protein coating. After entry into the host cell, the single stranded RNA is changed into double-stranded DNA by a virally encoded reverse transcriptase. With the help of integrase, the viral DNA gets incorporated into the cellular DNA and starts replicating.
    So, the correct answer is option A.

  • Question 6
    1 / -0
    Yoga trainees perform rapid deep breathing in order to
    Solution
    • The word yoga literally means to 'unite', and refers to the union of mind and body.
    • A complete yoga breathing practice includes calming, balancing and simulating practices which promotes to clean the respiratory system and keeping it healthy.
    • It also helps in improving the strength and flexibility of the chest muscles.
    • It helps improving the alignment of the ribs and spine.
    • It helps in maintaining and mental concentration.
    • So, the correct answer is 'All of the above'.
  • Question 7
    1 / -0
    Which one of the following does not follow central dogma of molecular biology
    Solution

    HIV being as retrovirus deviates from the central dogma instead of creating proteins from DNA, it uses its host cell to create DNA from the virus's own RNA.
    So the correct option is 'HIV'.
  • Question 8
    1 / -0
    Which of the following is an autoimmune disease?
    Solution
    Graves' disease is an autoimmune disease. It is known as toxic diffuse goiter. It affects the thyroid gland. The disease leads to the overproduction of thyroid hormones. Thyrotropin receptor antibody (TRAb) is the antibody produced acts as a regulatory pituitary hormone and causes hyperthyroidism. Irritability, muscle weakness, sleeping problems, a fast heartbeat, poor tolerance of heat, diarrhea, and unintentional weight loss are some common symptoms.
    So, the correct answer is option A.
  • Question 9
    1 / -0
    Addiction to alcohol causes 
    Solution
    Cirrhosis is the failure of the liver. The tissues of the liver are replaced by the scar tissue. In alcoholic person, some part of alcohol is changed into acetaldehyde, which stimulates the formation of fat. This fat gets deposited over the wall of arteries and also accumulates in liver cells. Due to which liver fails and there is very little regulation of carbohydrate protein and fat metabolism. Later on, the liver gets turned into solid, hard, fibrous organ causing liver cirrhosis.
    So, the correct answer is option A.
  • Question 10
    1 / -0
    An autoimmune disease is
    Solution
    Myasthenia gravis is an autoimmune disease. It is known as a neuromuscular disorder as it causes weakness of voluntary skeletal muscles. Nerve impulse which activates the skeletal muscles is blocked by antibodies which block the nicotinic acetylcholine receptors present at the junction between the nerve and muscle.
    So, the correct answer is option C.
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