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Revision Notes

Biological And Cultural Bases of Human Behaviour

Telangana Open School (TOSS) · Class 12 · Psychology

Quick revision notes for Biological And Cultural Bases of Human Behaviour — Telangana Open School (TOSS) Class 12 Psychology. Key concepts, formulas, and definitions for last-minute revision.

53 questions30 flashcards5 concepts

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Key Topics to Revise

1

Evolutionary Nature of Human Behaviour

  • Humans evolved from earlier species through natural selection over millions of years.
  • Key evolutionary changes in humans: larger brain, bipedalism (walking on two legs), and opposable thumb for tool use.
  • Evolution favours traits that improve survival and reproduction — this is called 'fitness'.
2

Structure and Function of the Nervous System

  • The nervous system controls all body functions through neurons that transmit signals.
  • It has two main parts: Central Nervous System (CNS) and Peripheral Nervous System (PNS).
  • CNS includes brain and spinal cord; PNS connects CNS to body parts.
3

Brain Structure and Functions

  • Brain is divided into hindbrain, midbrain, and forebrain.
  • Hindbrain: controls basic life functions — medulla (breathing, heartbeat), pons (sleep, hearing), cerebellum (balance, coordination).
  • Midbrain: connects hindbrain and forebrain; contains Reticular Activating System (RAS) for alertness.
4

Endocrine System and Hormones

  • Endocrine system consists of ductless glands that secrete hormones directly into blood.
  • Hormones regulate growth, metabolism, reproduction, and emotions.
  • Pituitary gland is the 'master gland' — controls other endocrine glands.

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Full Notes

Key Concepts

Humans evolved from earlier species throughNeurons are the basic unitsThe nervous system is divided intoThe brain has three main partsThe endocrine system consists of glands

Frequently Asked Questions

What are the important topics in Biological And Cultural Bases of Human Behaviour for Telangana Open School (TOSS) Class 12 Psychology?
Biological And Cultural Bases of Human Behaviour 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 Biological And Cultural Bases of Human Behaviour — Telangana Open School (TOSS) Class 12 Psychology?
Understand the core concepts first, then work through the 53 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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