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14 Questions

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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?

3βHSD Signup and view all the answers

Which of the following is an inhibitor of RANKL?

OPG Signup and view all the answers

Which region of the pancreas is intraperitoneal?

Tail Signup and view all the answers

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

GLP-1 Signup and view all the answers

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

GLUT1 Signup and view all the answers

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

Insulin Signup and view all the answers

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

Activates them Signup and view all the answers

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

Stimulates the release of insulin Signup and view all the answers

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

Activates glucokinase activity by filling catalytic sites with glucose Signup and view all the answers

Which of the following regarding glucose transporters is correct?

GLUT3 has a low Km Signup and view all the answers

In which of the following are GLUT1 proteins not present?

Intestines Signup and view all the answers