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Questions and Answers
Where are steroid hormones mainly conjugated?
Where are steroid hormones mainly conjugated?
- Lungs
- Kidneys
- Liver (correct)
- Heart
How are peptide hormones and catecholamines degraded?
How are peptide hormones and catecholamines degraded?
- By enzymes in the blood and tissues (correct)
- By recycling back to the cell membrane
- By clearance into the bile
- By enzymatic processes in the target cells
What is the typical half-life of angiotensin II in the blood?
What is the typical half-life of angiotensin II in the blood?
- Several hours
- 20 to 100 minutes
- Less than a minute (correct)
- 1 to 6 days
Where are hormones that are bound to plasma proteins cleared from?
Where are hormones that are bound to plasma proteins cleared from?
Which type of hormones remain in the blood for only a short time?
Which type of hormones remain in the blood for only a short time?
What causes endocytosis of the cell membrane hormone-receptor complex?
What causes endocytosis of the cell membrane hormone-receptor complex?
What is the main difference in how water-soluble hormones and steroid/thyroid hormones are transported in the blood?
What is the main difference in how water-soluble hormones and steroid/thyroid hormones are transported in the blood?
How do protein-bound hormones differ in their ability to interact with target cells compared to free hormones?
How do protein-bound hormones differ in their ability to interact with target cells compared to free hormones?
Why do relatively large amounts of hormones being bound to proteins serve as reservoirs?
Why do relatively large amounts of hormones being bound to proteins serve as reservoirs?
What is the primary role of metabolic clearance rate in determining hormone concentration in the blood?
What is the primary role of metabolic clearance rate in determining hormone concentration in the blood?
Why do water-soluble hormones diffuse out of capillaries into interstitial fluid before reaching target cells?
Why do water-soluble hormones diffuse out of capillaries into interstitial fluid before reaching target cells?
How does binding of hormones to plasma proteins affect their clearance from the bloodstream?
How does binding of hormones to plasma proteins affect their clearance from the bloodstream?
What is the primary purpose of measuring the metabolic clearance rate of a hormone?
What is the primary purpose of measuring the metabolic clearance rate of a hormone?
What is the formula used to calculate the metabolic clearance rate of a hormone?
What is the formula used to calculate the metabolic clearance rate of a hormone?
Which of the following is NOT one of the ways in which hormones are cleared from the plasma?
Which of the following is NOT one of the ways in which hormones are cleared from the plasma?
What is the purpose of infusing a radioactive solution of the hormone into the bloodstream during the measurement of metabolic clearance rate?
What is the purpose of infusing a radioactive solution of the hormone into the bloodstream during the measurement of metabolic clearance rate?
How does a decreased metabolic clearance rate of a hormone affect its concentration in the circulating body fluids?
How does a decreased metabolic clearance rate of a hormone affect its concentration in the circulating body fluids?
What is the primary reason for measuring the plasma concentration of the radioactive hormone during the metabolic clearance rate procedure?
What is the primary reason for measuring the plasma concentration of the radioactive hormone during the metabolic clearance rate procedure?
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