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Chemical Coordination and Integration Test 7

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Chemical Coordination and Integration Test 7
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  • Question 1
    1 / -0
    Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency : -
    Solution
    • Gigantism is a rare condition of accelerated growth and increased height as a result of too much growth hormone secretion during childhood or adolescence. It is almost always the result of a growth hormone-secreting pituitary tumour.
    •  Congenital hypothyroidism (under activity of the thyroid gland at birth), which results in growth retardation, developmental delay, and other abnormal features. Cretinism can be due to a deficiency of iodine in the mother's diet during pregnancy.
    • Hypoparathyroidism is decreased function of the parathyroid glands with underproduction of parathyroid hormone. This can lead to low levels of calcium in the blood, often causing cramping and twitching of muscles or tetany (involuntary muscle contraction) and several other symptoms.
    • Diabetes mellitus occurs due to insulin resistance or insulin deficiency and subsequent high blood glucose levels. Diabetes Insipidus, on the other hand, develops as a result of the stilted production of a hormone in the brain, which is released to stop the kidneys producing so much urine in order to retain water.

    So, the correct answer is 'Parathyroid hormone Tetany'.
  • Question 2
    1 / -0
    The absorption of $$Na^{+}$$ and secretion of $$K^{+}$$ by the nephron is under the control of hormone
    Solution
    • Aldosterone causes sodium to be absorbed and potassium to be excreted into the lumen by principal cells. 
    • In alpha intercalated cells, located in the late distal tubule and collecting duct, hydrogen ions and potassium ions are exchanged. 
    • Hydrogen is excreted into the lumen, and potassium is absorbed.
    So, option C is the correct option.
  • Question 3
    1 / -0
    If pancreas is removed, which of the following compounds remain undigested?
    Solution
    The pancreatic enzymes have following functions:
    1. Amylase digests the remaining complex carbohydrates into sugars by maltase, sucrase and lactase
    2. Trypsin, chymotrypsin, and elastase all digest proteins
    3. Lipase digests triglycerides into fatty acids and monoglycerides. 
    Hence without pancreas digestion cannot take place.
  • Question 4
    1 / -0
    The letter T in T-lymphocyte refers to :
    Solution
    The letter T in T-lymphocyte refers to Thymus. They can be distinguished from other lymphocytes, such as B cells and natural killer cells, by the presence of a T-cell receptor on the cell surface. They are called T cells because they mature in thymus.
    So, option A is the correct option.
  • Question 5
    1 / -0
    Which of the following is used in thyroid
  • Question 6
    1 / -0

    Assertion : There are several benefits of hormone therapy.

    Reason : Hormone therapy (HT) provides women with the female hormones that decrease as they age.

  • Question 7
    1 / -0
    Freemartin is an example of
    Solution
    Free martin is an examples of early influence of hormone on sex determination. Lillie and others found that when twins of opposite sex (One male and other female) are formed, the male is normal but female is sterile with many male characteristics. Such sterile female is known as free martin.
    So, the correct answer is 'Hormonal control of sex'
  • Question 8
    1 / -0
    Which of the following is not present in pancreatic juice?
    Solution
    Pancreatic juice is secreted by the pancreas, which contains a variety of enzymes, including trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase and amylase. Pepsin in not present in pancreatic juice. It is secreted by the peptic cells of the stomach.
  • Question 9
    1 / -0
    Which one of the following is the correct match?
    Solution
    The body keeps it's core temperature constant at about 37$$^0$$C by physiological adjustments, controlled by the hypothalamus. Hypothalamus thus known as thermostat center, where there are neurons sensitive to changes in skin and blood temperatures. 
    The hormones from the hypothalamus govern physiologic functions, such as temperature regulation, thirst, hunger, sleep, mood, sex drive and the release of other hormones within the body. This area of the brain houses the pituitary gland and other glands in the body.
  • Question 10
    1 / -0
    Endocrine glands secrete their secretion in 
    Solution
    Endocrine glands are the part of an endocrine system that produces hormones and other secretions directly into the blood, They include pituitary gland, thyroid gland, ovaries, testis, hypothalamus, etc. Blood helps transport these hormones faster to the target organs, thereby helping in its action. So, the correct answer is option A.
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