Thyroid Hormones and Biosynthesis
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of the enzyme 'iodothyronine deiodinase' in the synthesis of thyroid hormones?

  • It catalyzes the reductive process of deiodination to convert T4 to T3 (correct)
  • It catalyzes the formation of iodothyronines from iodotyrosines
  • It catalyzes the proteolysis of thyroglobulin and release of T4 and T3
  • It catalyzes the oxidation of iodide and formation of iodotyrosyine residues

What are the two major thyroid hormones formed by the coupling of two DIT or one DIT with one MIT residue?

  • T3 and rT3
  • rT3 and T4
  • MIT and DIT
  • T4 and T3 (correct)

What is the function of thyroglobulin proteolysis?

  • It converts T4 to T3
  • It releases T4 and T3 into the blood (correct)
  • It catalyzes the oxidation of iodide and formation of iodotyrosyine residues
  • It forms iodothyronines from iodotyrosines

What is the name of the prodrug derivative of methimazole?

<p>Carbimazole (B)</p> Signup and view all the answers

What are the two rings in the nomenclature of thyroid hormones?

<p>Inner ring and outer ring (A)</p> Signup and view all the answers

What is the function of antithyroid drugs?

<p>To treat hyperthyroidism (D)</p> Signup and view all the answers

What is the origin of prostaglandins?

<p>Mammalian tissue (D)</p> Signup and view all the answers

What is the first step in the biosynthesis of thyroid hormones?

<p>Accumulative uptake of iodide by the follicular cell (C)</p> Signup and view all the answers

What is the full name of L-Thyroxine (T4)?

<p>L-(-)-3,5,3’,5’-tetraiodo-L-thyronine (C)</p> Signup and view all the answers

What is the function of iodide in the treatment of hyperthyroidism?

<p>It is used as an antithyroid drug (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser