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Questions and Answers
What is the main difference in the circulation of hydrophilic and lipophilic hormones?
What is the main difference in the circulation of hydrophilic and lipophilic hormones?
- Hydrophilic hormones are rapidly eliminated from circulation, while lipophilic hormones circulate mainly bound to plasma proteins. (correct)
- Hydrophilic hormones circulate unbound in the blood, while lipophilic hormones are quickly broken down in plasma.
- Lipophilic hormones are rapidly eliminated from circulation, while hydrophilic hormones circulate mainly bound to plasma proteins.
- Hydrophilic hormones have a long half-life due to binding to plasma proteins, while lipophilic hormones are rapidly eliminated.
What is the function of negative feedback in hormone systems?
What is the function of negative feedback in hormone systems?
- It promotes hormone secretion by enhancing the activity of target tissues.
- It prevents overactivity of hormone systems by suppressing further hormone release. (correct)
- It accelerates the clearance of hormones from plasma.
- It prolongs the half-life of hormones in circulation.
What effect does binding to plasma proteins have on the half-life of lipophilic hormones?
What effect does binding to plasma proteins have on the half-life of lipophilic hormones?
- It has no effect on the half-life of lipophilic hormones.
- It prolongs the half-life by slowing down hormone clearance from plasma. (correct)
- It reduces the effectiveness of lipophilic hormones at target tissues.
- It shortens the half-life by accelerating hormone elimination from the blood.
Which mechanism can lead to surges of hormones?
Which mechanism can lead to surges of hormones?
What does the term 'half-life' refer to in relation to hormones?
What does the term 'half-life' refer to in relation to hormones?
How does negative feedback control prevent over-secretion of hormones?
How does negative feedback control prevent over-secretion of hormones?
What role does binding to plasma proteins play in the circulation of lipophilic hormones?
What role does binding to plasma proteins play in the circulation of lipophilic hormones?
What is the main effect of positive feedback control on hormone secretion?
What is the main effect of positive feedback control on hormone secretion?
In what way do hydrophilic hormones differ from lipophilic hormones in terms of their plasma levels?
In what way do hydrophilic hormones differ from lipophilic hormones in terms of their plasma levels?
What is the primary function of neuroendocrine reflexes in controlling hormone secretion?
What is the primary function of neuroendocrine reflexes in controlling hormone secretion?
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