Table of contents

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1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

16. The Endocrine System

Intracellular Receptors and Direct Gene Action

Anatomy & Physiology

16. The Endocrine System

Intracellular Receptors and Direct Gene Action

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Multiple Choice

Which of the following statements best describes steroid receptors?

Steroid receptors are membrane-bound receptors that activate secondary messenger pathways.

Steroid receptors are located on the cell surface and primarily use cAMP as a secondary messenger.

Steroid receptors are enzymes that catalyze the conversion of ATP to cAMP.

Steroid receptors are intracellular receptors that directly influence gene expression.

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Verified step by step guidance

Understand that steroid hormones are lipophilic, meaning they can easily pass through the cell membrane.

Recognize that because steroid hormones can pass through the cell membrane, their receptors are typically located inside the cell, either in the cytoplasm or the nucleus.

Identify that once the steroid hormone binds to its intracellular receptor, the hormone-receptor complex can directly interact with DNA in the nucleus.

Acknowledge that this interaction with DNA allows the hormone-receptor complex to influence gene expression by acting as a transcription factor.

Conclude that steroid receptors are intracellular receptors that directly influence gene expression, differentiating them from membrane-bound receptors that use secondary messenger pathways.