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Chapter 39 of 41
Chapter Summary

Homeostasis

Telangana Open School (TOSS) · Class 12 · Biology

Summary of Homeostasis for Telangana Open School (TOSS) Class 12 Biology. Key concepts, important points, and chapter overview.

44 questions30 flashcards5 concepts

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Overview

Homeostasis is the body's ability to maintain a stable internal environment despite changes in external conditions. This chapter explores how living organisms, especially humans, regulate internal factors like temperature, water balance, and chemical concentrations to ensure optimal cell function. A

Key Concepts

Homeostasis refers to the maintenance

Homeostasis refers to the maintenance of a stable internal environment in the body. It ensures that conditions such as temperature, pH, water content,

It is the process by

It is the process by which the body maintains a constant core temperature (around 37°C). This involves balancing heat production and heat loss through

Endotherms (like birds and mammals) generate

Endotherms (like birds and mammals) generate internal heat to maintain body temperature, while ectotherms (like frogs and lizards) depend on external

A regulatory system where any deviation

A regulatory system where any deviation from the set point triggers a response that reverses the change. For example, if body temperature rises, sweat

Every homeostatic process involves four components

Every homeostatic process involves four components: a set point (normal value), sensors (detect changes), an integrating centre (processes information

Learning Objectives

  • Explain the term thermoregulation and justify its need in the body.
  • Differentiate between endotherms and ectotherms.
  • List the body parts involved in thermoregulation and explain how they contribute to heat production and heat loss.
  • Name the principal heat-regulating centre in the body and describe how it functions.
  • Explain the term 'feedback' and differentiate between positive and negative feedback mechanisms.

Frequently Asked Questions

What are the important topics in Homeostasis for Telangana Open School (TOSS) Class 12 Biology?
Homeostasis covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Homeostasis — Telangana Open School (TOSS) Class 12 Biology?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Open School (TOSS) Class 12 Biology.