Chemical Coordination and Integration — Class 11 Bio-Zoology (Samacheer Kalvi)
TN State Board (Samacheer Kalvi) Class 11 Bio-Zoology, Chapter 11. Endocrine glands, hormones and feedback mechanisms.
1. About this chapter
This chapter covers Chemical Coordination and Integration as part of the Class 11 Samacheer Kalvi Bio-Zoology curriculum. It deals with endocrine glands, hormones and feedback mechanisms and builds conceptual understanding essential for the TN HSC Public Exam.
By the end of this chapter, students will be able to:
- Name endocrine glands and their hormones
- Describe feedback control of hormones
2. Key concepts
- Concept 1: Name endocrine glands and their hormones.
- Concept 2: Describe feedback control of hormones.
3. Important terms and formulas
| Term / Formula | Description |
|---|---|
| Name endocrine glands and… | Name endocrine glands and their hormones |
| Describe feedback control of… | Describe feedback control of hormones |
4. Worked examples
Example 1. Applying a key concept from this chapter.
Solution: Identify the relevant principle → apply the formula or rule → state the answer with correct units.
Example 2. A typical exam-style question on chemical coordination and integration.
Solution: Break the problem into steps, use the appropriate formula and verify the answer.
5. Common mistakes
- Mistake: Skipping units or forgetting to state them. Fix: Always write units alongside every quantity and answer.
- Mistake: Confusing similar terms or concepts in this chapter. Fix: Make a comparison table of the terms during revision.
6. Practice (exam-style)
- Define the main term or principle covered in Chapter 11.
- Give two real-life examples related to chemical coordination and integration.
- Solve a short numerical or descriptive question from this chapter.
- State one important formula and explain each symbol.
7. Answer key (hints)
- Refer to section 2 (Key concepts) above for the definition.
- Examples should be drawn from daily experience and local context.
- Apply the formula from section 3, show all steps clearly.
- Formula with units — refer to the textbook glossary for symbol meanings.
8. Quick revision
- Class 11 Bio-Zoology — Chapter 11: Chemical Coordination and Integration.
- Core idea: Endocrine glands, hormones and feedback mechanisms.
- Key outcomes: Name endocrine glands and their hormones; Describe feedback control of hormones.
- Always revise diagrams / tables from the Samacheer Kalvi textbook before the exam.
