Chapter 13: Questions On The Endocrine System

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Endocrine System Quizzes & Trivia

Questions and Answers
  • 1. 

    What is essential in regulating electrolyte and water balance by promoting sodium and chloride reabsorption and potassium excretion?

    • A.

      Dopamine

    • B.

      Insulin

    • C.

      Aldosterone

    • D.

      Cortisone

    Correct Answer
    C. Aldosterone
    Explanation
    Aldosterone is essential in regulating electrolyte and water balance by promoting sodium and chloride reabsorption and potassium excretion. It is a hormone produced by the adrenal glands that acts on the kidneys to increase the reabsorption of sodium and chloride ions, which helps to retain water and maintain blood pressure. At the same time, aldosterone promotes the excretion of potassium ions, helping to maintain the balance of electrolytes in the body.

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  • 2. 

    Sympathomimetic hormones,epinephrine, norepinephrine, and dopamine 

    • A.

      Catecholamines

    • B.

      Iodine

    • C.

      Thyroxine

    • D.

      Vasopressin

    Correct Answer
    A. Catecholamines
    Explanation
    Catecholamines refer to a group of hormones that include epinephrine, norepinephrine, and dopamine. These hormones are produced by the adrenal glands and play a crucial role in the body's response to stress. They act as sympathomimetic agents, mimicking the effects of the sympathetic nervous system. Catecholamines increase heart rate, blood pressure, and energy production, preparing the body for a "fight or flight" response. This distinguishes them from iodine, thyroxine, and vasopressin, which are not sympathomimetic hormones.

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  • 3. 

    Hormones that produce or stimulate the development of male characteristics are called?

    • A.

      Epineprine

    • B.

      Dopamine

    • C.

      Cortisone

    • D.

      Androgen

    Correct Answer
    D. Androgen
    Explanation
    Androgens are hormones that produce or stimulate the development of male characteristics. They are responsible for the development of male reproductive organs, secondary sexual characteristics such as facial hair and deep voice, and play a role in muscle growth and bone density. Epinephrine, dopamine, and cortisone are not hormones that specifically produce or stimulate male characteristics, making androgen the correct answer.

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  • 4. 

    Glucocorticoid (Steroid) hormone used in an anti- inflamitory agent 

    • A.

      Androgen

    • B.

      Epinephrine

    • C.

      Thyroxine

    • D.

      Cortisone

    Correct Answer
    D. Cortisone
    Explanation
    Cortisone is a glucocorticoid hormone commonly used as an anti-inflammatory agent. It helps to reduce inflammation and suppress the immune system's response, making it effective in treating conditions such as arthritis, allergies, and asthma. Cortisone works by inhibiting the production of certain chemicals that cause inflammation, thereby providing relief from pain and swelling.

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  • 5. 

    An intermediate substance in the synthesis of norepinephrine is called?

    • A.

      Insulin

    • B.

      Epinephrine

    • C.

      Dopamine

    • D.

      Thyroxine

    Correct Answer
    C. Dopamine
    Explanation
    Dopamine is an intermediate substance in the synthesis of norepinephrine. Norepinephrine is synthesized from dopamine through a series of enzymatic reactions. Dopamine is converted into norepinephrine by the enzyme dopamine beta-hydroxylase. Norepinephrine is an important neurotransmitter and hormone that plays a role in regulating blood pressure, attention, and mood. Insulin, epinephrine, and thyroxine are not involved in the synthesis of norepinephrine.

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  • 6. 

    Also called adrenaline

    • A.

      Cortisone

    • B.

      Androgen

    • C.

      Epinephrine

    • D.

      Thyroxine

    Correct Answer
    C. Epinephrine
    Explanation
    Epinephrine is also known as adrenaline. It is a hormone and neurotransmitter produced by the adrenal glands. Epinephrine plays a crucial role in the body's response to stress or danger, commonly known as the "fight-or-flight" response. It increases heart rate, blood pressure, and glucose levels, providing a burst of energy and heightened awareness. Epinephrine is used medically to treat severe allergic reactions, asthma attacks, and cardiac arrest. Its ability to rapidly increase heart rate and blood pressure makes it a vital hormone in emergency situations.

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  • 7. 

    What acts to regulate the metabolism of glucose?

    • A.

      Insulin

    • B.

      Cortisone

    • C.

      Dopamine

    • D.

      Iodine

    Correct Answer
    A. Insulin
    Explanation
    Insulin acts to regulate the metabolism of glucose. Insulin is a hormone produced by the pancreas that helps to control blood sugar levels. It allows cells in the body to take in glucose from the bloodstream and use it for energy or store it for later use. Insulin also helps to regulate the production and release of glucose from the liver. Without insulin, glucose cannot be properly metabolized, leading to high blood sugar levels and potentially causing diabetes.

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  • 8. 

    Trace mineral that aids in the development and functioning of the thyroid gland

    • A.

      Androgen

    • B.

      Thyroxine

    • C.

      Iodine

    • D.

      Dopamine

    Correct Answer
    C. Iodine
    Explanation
    Iodine is a trace mineral that plays a crucial role in the development and functioning of the thyroid gland. The thyroid gland produces hormones like thyroxine, which are essential for regulating metabolism, growth, and development. Iodine is a necessary component for the synthesis of these hormones. Without sufficient iodine, the thyroid gland cannot produce enough thyroxine, leading to conditions like hypothyroidism. Therefore, iodine is important for maintaining proper thyroid function and overall health.

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  • 9. 

    Hormone produced by the thyroid gland

    • A.

      Iodine

    • B.

      Insulin

    • C.

      Cortisone

    • D.

      Thyroxine

    Correct Answer
    D. Thyroxine
    Explanation
    Thyroxine is the correct answer because it is a hormone produced by the thyroid gland. It plays a crucial role in regulating metabolism, growth, and development in the body. Thyroxine is synthesized from iodine, which is obtained from the diet. Insulin is produced by the pancreas and regulates blood sugar levels, cortisone is produced by the adrenal glands and has anti-inflammatory effects, but neither of these hormones are produced by the thyroid gland.

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  • 10. 

    Also called antidiuretic hormone ADH

    • A.

      Cortisone

    • B.

      Iodine

    • C.

      Insulin

    • D.

      Vasopressin

    Correct Answer
    D. Vasopressin
    Explanation
    Vasopressin is also known as antidiuretic hormone (ADH). It is a hormone produced by the hypothalamus and released by the pituitary gland. Vasopressin plays a crucial role in regulating water balance in the body by reducing the amount of water excreted in urine. It acts on the kidneys, causing them to reabsorb water and concentrate urine. This helps in maintaining proper fluid balance and preventing dehydration. Vasopressin also has vasoconstrictive effects, which can increase blood pressure. Therefore, vasopressin is the correct answer in this context.

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