Multiple Choice Questions

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Toxic agents present in food which interfere with thyroxine synthesis lead to the development of 

  • toxic goitre

  • cretinism 

  • simple goitre

  • simple goitre


C.

simple goitre

toxic agents in food which interfere with thyroxine synthesis will lead to simple goitre thyrotoxicosis and toxic goitre is under the category of hyperthyroidism.

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Which one of the following pairs of chemical substances, is correctly categorised?

  • Calcitonin and thymosin - Thyroid hormones

  • Pepsin and prolactin - Two digestive enzymes secreted in stomach

  • Troponin and myosin - Complex proteins in striated muscles

  • Troponin and myosin - Complex proteins in striated muscles

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Erythropoiesis starts in 

  • kidney

  • liver

  • spleen

  • spleen

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A chemical signal that has both endocrine and neural roles is?

  • melatonin

  • calcitionin

  • epinephrine

  • epinephrine

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Match the source gland with its respective hormone as well as the function.

  • Source gland Hormone Function
    Posterior pituitary Vasopressin Stimulates resorption of water in the distal tubules in the nephron

  • Source gland Hormone Function
    Corpus luteum Oestrogen Supports pregnancy

  • Source gland Hormone Function
    Thyroid Thyroxine Regulates blood calcium level

  • Source gland Hormone Function
    Thyroid Thyroxine Regulates blood calcium level

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The 24 hour (diurnal) rhythm of our body such as the sleep -wake cycle is regulated by the hormone

  • Calcitonin

  • prolactin

  • adrenaline

  • adrenaline

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Injury to the adrenal cortex is not likely to affect the secretion of which one of the following? 

  • Aldosterone

  • Both androstenedione and dehydroepiandrosterone 

  • Adrenalin

  • Adrenalin

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Which one of the following pairs is incorrectly matched?

  • Glucagon - Beta cells (source)

  • Somatostatin - Delta cells (source)

  • Corpus luteum - Relaxin (secretion)

  • Corpus luteum - Relaxin (secretion)

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The nerve centres which control the body temperature and the urge for eating are contained in 

  • hypothalamus

  • pons

  • cerebellum

  • cerebellum

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Select the correct matching of a hormone its source and function.

  • Hormone

    Source

    Function

    Vasopressin

    Posterior Pituitary

    Increases loss of water through urine

  • Hormone

    Source

    Function

    Norepinephrine

    Adrenal medulla

    Increases heartbeat, rate of respiration and alertness

  • Hormone

    Source

    Function

    Glucagon

    Beta-cells of Islets of Langerhans

    Stimulates glycogenolysis

  • Hormone

    Source

    Function

    Glucagon

    Beta-cells of Islets of Langerhans

    Stimulates glycogenolysis

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