Biochem L2 Part 1
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Questions and Answers

Which type of hormone circulates bound to a carrier protein, but is active in its free form?

  • Steroids (correct)
  • Fatty acid derivatives
  • Proteins and peptides
  • Amino acids (amines)

What is the plasma half-life of adrenaline?

  • 30-100 minutes
  • Varies
  • 1 week
  • Less than 1 minute (correct)

How many types of hormones are generally categorized based on their chemical structure?

  • 3
  • 2
  • 1
  • 4 (correct)

Which of the following is a possible cause of hypopituitarism?

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

Which of the following is a common symptom of pan-hypopituitarism?

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

Which of the following is NOT a possible cause of pan-hypopituitarism?

<p>Excessive cortisol production (B)</p> Signup and view all the answers

Which hormone has the longest plasma half-life?

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

Which hormone is responsible for increasing Aquaporin 2 (AQP2) expression on the apical cell surface?

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

Which water channels are present on the basolateral side of the cell?

<p>AQP3 and AQP4 (B)</p> Signup and view all the answers

Which of the following is a method used to stimulate growth hormone (GH) secretion?

<p>Deep sleep (D)</p> Signup and view all the answers

Which of the following is a metabolic effect of GH in adipose tissue?

<p>Stimulates lipolysis (D)</p> Signup and view all the answers

Which of the following is a better marker for growth hormone (GH) excess than GH itself?

<p>IGF-1 (B)</p> Signup and view all the answers

Which hormone is responsible for increasing IGF-I levels in the body?

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

Which of the following conditions can lead to reduced IGF-I levels?

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

Which stage of life is associated with a decrease in IGF-I levels?

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

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