Mechanism Of Hormone Action
Which of the following hormones interacts with membrane-bound receptors?
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About This Question
- Subject
- biology
- Chapter
- chemical coordination and integration
- Topic
- mechanism of hormone action
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Insulin
- Hormone Types: Hormones are either lipid-soluble (steroids) or water-soluble (peptides/amines).
- Receptor Location: Water-soluble hormones cannot cross the cell membrane and must bind to membrane-bound receptors.
- Insulin: A protein hormone that binds to surface receptors to trigger second messengers.
- Steroids: Estrogen, Progesterone, and Cortisol are lipids that cross the membrane and bind to intracellular receptors.
- Conclusion: Insulin interacts with membrane receptors.
This medium difficulty biology question is from the chapter chemical coordination and integration, covering the topic of mechanism of hormone action. It appeared in the 2025 exam.
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