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HORMONES General Structure and Properties

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HORMONES General Structure and Properties

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Questions and Answers

What is the primary function of thyroxine-binding globulin (TBG)?

To synthesize thyroid hormones from iodine and tyrosine

To regulate the activity of the sodium-potassium ATPase pump

To couple diiodotyrosine (DIT) molecules to form T4

To transport thyroid hormones T3 and T4 in the bloodstream (correct)

Which of the following statements about thyroglobulin is true?

It couples diiodotyrosine (DIT) molecules to form T3

It is the inactive precursor to T3 and T4

It transports iodide into the thyroid gland

It is iodinated and glycosylated during T3 and T4 synthesis (correct)

What is the primary role of the sodium-potassium ATPase transporter in thyroid hormone synthesis?

To couple diiodotyrosine (DIT) molecules to form T4

To transport iodide into the thyroid gland (correct)

To synthesize T3 from monoiodotyrosine (MIT) and diiodotyrosine (DIT)

To glycosylate thyroglobulin during T3 and T4 synthesis

Which of the following statements about the synthesis of T3 and T4 is correct?

The coupling of an MIT and a DIT molecule forms T3 Signup and view all the answers

What is the significance of the T:S ratio in thyroid hormone synthesis?

It is the ratio of iodide in the thyroid to iodide in the serum Signup and view all the answers

Qual es le effecto electrogenico del transportator Na+-K+-ATPase?

Crea un disparentia de carga inter le interior e le exterior del cellula. Signup and view all the answers

Qual es le effecto de ouabain e digitalis sur le Na+-K+-ATPase?

Inhibi illo. Signup and view all the answers

Como le gradient de Na+ influentia le transporto de glucose in le intestino parve?

Plus grande gradient de Na+ -> plus grande entrata de glucose. Signup and view all the answers

A qual altere transportatores pote esser associate le Na+-K+-ATPase?

Transportatores de glucose. Signup and view all the answers

Como funciona un symport Na+-glucose?

Illo permite movimento sinergic de Na+ e glucose. Signup and view all the answers

Quid produce le interaction inter glucose e Na+ in un symporter?

Un entrata major de glucose. Signup and view all the answers

Qual es le effecto de un gradient major de Na+ sur le transporto celular de glucose?

Incrementa le transporto celular de glucose. Signup and view all the answers

Qual es un characteristic clave del effecto electrogenico create per le Na+-K+-ATPase?

Illo crea un disparentia intra-cellular negative. Signup and view all the answers

Como inhibi ouabaina e digitalis le function del Na+-K+-ATPase?

Per inhibir le function normal del ATPase. Signup and view all the answers

Qual es le consequentia del interaction inter glucose e Na+ in un symporter?

Un entrata major de glucosa. Signup and view all the answers