Take The Quiz To Learn About The Structure & Function of Thyroxine

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| By Tanya Mishra
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Tanya Mishra
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  • 1/10 Questions

    Which organ produces thyroxine in the body? 

    • Spleen
    • Thyroid
    • Liver
    • Brain
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About This Quiz

Thyroxine is a vital hormone in digestion, bone health & brain development, etc. We encourage you to take this quiz to learn about the structure & function of thyroxine. The questions in our informative quiz will surely help you learn and access your knowledge levels. All the questions in our quiz are compulsory, so please make sure to read them See morecarefully before answering. So, get ready to go on this fun adventure with us! Good Luck, and have fun!

Take The Quiz To Learn About The Structure & Function Of Thyroxine - Quiz

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  • 2. 

    Which substance is necessary for thyroxine? 

    • Calcium

    • Arginine

    • Iodine

    • Potassium 

    Correct Answer
    A. Iodine
    Explanation
    Iodine is necessary for the production of thyroxine. Thyroxine is a hormone produced by the thyroid gland that helps regulate metabolism and growth. Iodine is an essential component of thyroxine, as it is incorporated into the structure of the hormone. Without sufficient iodine, the thyroid gland cannot produce enough thyroxine, leading to a condition called hypothyroidism. Therefore, iodine is necessary for the synthesis of thyroxine and the proper functioning of the thyroid gland.

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  • 3. 

    Which of the following is amongst the functions of thyroxine? 

    • Infant brain development

    • Metabolism of cholesterol

    • Maturation of tissues

    • None of the above

    Correct Answer
    A. None of the above
    Explanation
    The correct answer is "None of the above." Thyroxine is a hormone produced by the thyroid gland, and it plays a crucial role in regulating metabolism, growth, and development in the body. However, it does not specifically function in infant brain development, metabolism of cholesterol, or maturation of tissues. These functions are associated with other hormones or processes in the body.

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  • 4. 

    Which of the following is a symptom of hypothyroidism?

    • Weight gain

    • Fatigue

    • Intolerance to temperature fluctuations

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the symptoms listed - weight gain, fatigue, and intolerance to temperature fluctuations - are commonly associated with hypothyroidism. Weight gain is a common symptom as the thyroid hormone plays a role in regulating metabolism. Fatigue is also a common symptom as the lack of thyroid hormone can lead to a decrease in energy levels. Intolerance to temperature fluctuations can occur as the thyroid hormone helps regulate body temperature. Therefore, all of the above symptoms can be indicative of hypothyroidism.

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  • 5. 

    What is the name of the synthetic version of Thyroxine? 

    • Levothyroxine 

    • Adderall

    • Losartan

    • Hydrocodone

    Correct Answer
    A. Levothyroxine 
    Explanation
    Levothyroxine is the synthetic version of Thyroxine.

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  • 6. 

    The release of too much thyroxine is known as

    • Toxicosis

    • Thyroidtoxin

    • Thyrotoxicosis

    • None of the above

    Correct Answer
    A. Thyrotoxicosis
    Explanation
    Thyrotoxicosis refers to the condition characterized by the excessive release of thyroxine hormone from the thyroid gland. This condition leads to an overactive thyroid, causing symptoms such as weight loss, increased heart rate, anxiety, and sweating. Toxicosis, on the other hand, is a general term used to describe the presence of toxins or poisonous substances in the body, which may or may not be related to the thyroid gland. Therefore, the correct answer is Thyrotoxicosis.

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  • 7. 

    Which of the following is one of the best ways to determine hyperthyroidism? 

    • A thyroid stimulating hormone test (TSH)

    • An ultrasound

    • An MRI scan

    • A hematocrit test

    Correct Answer
    A. A thyroid stimulating hormone test (TSH)
    Explanation
    A thyroid stimulating hormone test (TSH) is one of the best ways to determine hyperthyroidism because TSH is produced by the pituitary gland and controls the release of thyroid hormones. In hyperthyroidism, the thyroid gland produces excessive amounts of thyroid hormones, leading to symptoms such as weight loss, rapid heartbeat, and anxiety. A TSH test measures the levels of TSH in the blood, and if the TSH levels are low, it indicates that the thyroid gland is overactive, confirming the diagnosis of hyperthyroidism. Ultrasound and MRI scans are not typically used for diagnosing hyperthyroidism, while a hematocrit test measures the percentage of red blood cells in the blood and is not directly related to thyroid function.

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  • 8. 

    How does hyperthyroidism affect pregnant women? 

    • It increases the chances of pregnancy

    • It makes labor more difficult

    • It increases the chances of miscarriage

    • It  reduces the chance of getting pregnant.

    Correct Answer
    A. It  reduces the chance of getting pregnant.
    Explanation
    Hyperthyroidism is a condition where the thyroid gland produces too much thyroid hormone. This hormonal imbalance can disrupt the normal menstrual cycle and ovulation, leading to difficulty in getting pregnant. Therefore, hyperthyroidism reduces the chance of getting pregnant.

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  • 9. 

    What is the normal range of thyroxine in a healthy adult? 

    • 5.0 – 11.0 ug/dL

    • 50 – 100 ug/dL

    • 150 – 220 ug/dL

    • 250 – 310 ug/dL

    Correct Answer
    A. 5.0 – 11.0 ug/dL
    Explanation
    The normal range of thyroxine in a healthy adult is 5.0 – 11.0 ug/dL. This range represents the typical levels of thyroxine found in the blood of a healthy adult individual. Thyroxine is a hormone produced by the thyroid gland and plays a crucial role in regulating metabolism and other bodily functions. Deviations from this normal range can indicate thyroid disorders or other health issues.

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  • 10. 

    Which of the following is a precursor of thyroxine?

    • Tyrosine

    • Serine

    • Glutamic acid

    • Proline

    Correct Answer
    A. Tyrosine
    Explanation
    Tyrosine is a precursor of thyroxine. Thyroxine is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism. Tyrosine is an amino acid that serves as the building block for the synthesis of thyroxine. Through a series of enzymatic reactions, tyrosine is converted into thyroxine in the thyroid gland, with the help of iodine. Therefore, tyrosine is the correct answer as it is the precursor molecule required for the synthesis of thyroxine.

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Quiz Review Timeline (Updated): Aug 16, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Aug 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 30, 2022
    Quiz Created by
    Tanya Mishra

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