Skip to main content
Super TutorResources
Chapter 6 of 15
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Chapter Summary

Origin of life

ICSE · Class 12 · Biology

Summary of Origin of life for ICSE Class 12 Biology. Key concepts, important points, and chapter overview.

103 questions34 flashcards5 concepts

Interactive on Super Tutor

Studying Origin of life? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for chapter summary and more.

Try Super Tutor — Free

1,000+ Class 12 students started this chapter today

Overview

Life is the power that an organism possesses to maintain and reproduce itself. The origin of life is treated as a unique event in the history of the universe. Modern biology explains it as a gradual process linked with chemical evolution on the primitive earth. The chapter covers early ideas such as

Key Concepts

The cosmos is believed to have

The cosmos is believed to have originated 10-20 billion years ago through the big bang. Earth formed about 4.5 billion years back in the solar system.

Life is described as having originated

Life is described as having originated on earth due to a supernatural event. It is based on faith and lies outside scientific investigation because it

This old idea states that life

This old idea states that life can arise from non-living organic matter without the intervention of living things. Ancient thinkers such as Anaximande

Biogenesis states that life arises only

Biogenesis states that life arises only from pre-existing life. Redi’s three-jar experiment, Spallanzani’s sealed-flask experiment and Pasteur’s swan-

This modern theory explains the biochemical

This modern theory explains the biochemical origin of life through gradual chemical evolution. Oparin gave the first scientific account in 1924 and Ha

Learning Objectives

  • Understand the major views on the origin of life
  • Differentiate between special creation, spontaneous generation, biogenesis and biochemical evolution
  • Describe the Oparin-Haldane theory in its main steps
  • Explain the Miller-Urey experiment and its significance
  • Define important terms such as abiogenesis, coacervates, protobionts and chemogeny

Frequently Asked Questions

What are the important topics in Origin of life for ICSE Class 12 Biology?
Key topics in Origin of life include Timeline of Major Events in Origin of Life, Oparin-Haldane Eight-Step Process of Life's Origin, Mind map showing the hierarchical structure of universe formation from Big Bang through solar system development and planetary conditions.. These are the concepts ICSE Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Origin of life — ICSE Class 12 Biology?
Understand the core concepts first, then work through the 103 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.

More resources for Origin of life

All 15 chapters — ICSE Class 12 Biology Chapter Summary

For serious students

Get the full Origin of life chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 12 Biology.

Try Super Tutor Free
Try the full chapter — Free