ENDOCRINE part 2
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Questions and Answers

Which of the following is correct regarding thyroid hormones?

  • T4 is more potent than T3.
  • T4 undergoes dideiodinisation to become T3.
  • Thyroid hormones cause bradycardia.
  • T4 is the most common thyroid hormone produced from the thyroid gland. (correct)

Which of the following is correct regarding the suprarenal glands?

  • The medulla is derived from endoderm.
  • The cortex is derived from mesoderm. (correct)
  • The cortex is derived from neuroectodermal cells.
  • Medulla produces androgens.

Which of the following is not an enzyme involved in aldosterone synthesis?

  • 17⍺-hydroxylase
  • 21-hydroxylase
  • β-hydroxylase (correct)
  • 18-oxidase

Which of the following is the 2nd enzyme involved in cortisol synthesis?

<p>3βHSD (A)</p> Signup and view all the answers

Which of the following is an inhibitor of RANKL?

<p>OPG (C)</p> Signup and view all the answers

Which region of the pancreas is intraperitoneal?

<p>Tail (A)</p> Signup and view all the answers

What stimulates vesicles containing insulin to move to the cell surface membrane and release insulin?

<p>GLP-1 (D)</p> Signup and view all the answers

What is the major transporter used for uptake of glucose in fetal tissues?

<p>GLUT1 (B)</p> Signup and view all the answers

Which hormone is considered an anabolic hormone in the fed state?

<p>Insulin (C)</p> Signup and view all the answers

What does insulin do to the catalytic sites of glucokinase in the liver?

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

What is the role of GLP-1 released by the stomach in response to eating?

<p>Stimulates the release of insulin (A)</p> Signup and view all the answers

How does insulin act on the catalytic sites of glucokinase in the liver?

<p>Activates glucokinase activity by filling catalytic sites with glucose (A)</p> Signup and view all the answers

Which of the following regarding glucose transporters is correct?

<p>GLUT3 has a low Km (D)</p> Signup and view all the answers

In which of the following are GLUT1 proteins not present?

<p>Intestines (C)</p> Signup and view all the answers

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