Biology for Class-XII

About the course

Love for nature. The rhythm of earth can be explained as a 'Universal biological clock which ticks in units of energy, not in units of time'. What is life on earth? What does it mean to be alive? It cannot be distinguished between life and death. You are alive, and so am I. What expounds life on earth is controversial.

The word biology is derived from the Greek words 'bios' and 'logos' which means life and study. It is the science of life and wide diversity of living organisms like bacteria, or several cells,animals, plants and fungi. Aspects of biological science range from the study of molecular mechanisms in cells, to the classification and behavior of organisms, how species evolve and interaction between ecosystems.

Despite the ambit and complexities Modern biology offers many specialized disciplines such as Evolutionary Biology, Cellular Biology, Molecular Biology and Genetics .These fields requires a thorough knowledge of the basics and theories of Biology. This module deals with the study of structure, function, growth, distribution, evolution, or other features of living organisms in two branches of study – Botany and Zoology.

Botany or plant science is the scientific study of plant life. Plants are the major source of food and nutrition, supplementing medicines and cosmetic products and serving as important ingredients in a variety of medicines in human life. The study of plants provides an insight on how it operates, grows the best and nutritious crops. Zoology or Animal Biology also known as animal Science is the scientific study of Animal life. For one, the study of animals and its communities provides an intuition into how life works, and accordingly, how we work.


  • The content is purely based on NCERT syllabus.
  • Systematically organised contents.
  • Ensures comprehensive and thorough learning to develop clear concept.
  • Notes are in-cooperated with images and/or visual models and additional information to provide a conceptual understanding.
  • The contents published in our website are crafted by experts.
  • Easy and quick access of chapter-wise questions and answers.
  • Practice tests end of each chapter with different difficulty level are provided.
  • Completely solved NCERT textbook questions.
  • Student having trouble finding solutions to difficult NCERT problems can make use of the NCERT solutions provided.
  • The solutions are arranged in a manner that ensures comprehensive learning and also makes better use of the student’s time.
  • Multiple choice questions and Evaluation questions are included in each chapter.
  • At the end of each section the scholar can self access their performance.
  • Promotes self confidence and self esteem through self-paced learning.
  • Enhances logical thinking and problem solving skills.
  • This module is also helpful for students preparing for various competitive exams.


Unit VI :Reproduction
Chapter 1 :Reproduction in Organisms
Chapter 2 :Sexual Reproduction in Flowering Plants
Chapter 3 :Human Reproduction
Chapter 4 :Reproductive Health
Unit VII :Genetics and Evolution
Chapter 5 :Principles of Inheritance and Variation
Chapter 6 :Molecular Basis of Inheritance
Chapter 7 :Evolution
Unit VIII :Biology in Human Welfare
Chapter 8 :Human Health and Disease
Chapter 9 :Strategies for Enhancement in Food Production
Chapter 10 :Microbes in Human Welfare
Unit IX :Biotechnology
Chapter 11 :Biotechnology - Principles and Processes
Chapter 12 :Biotechnology and its Application
Unit X :Ecology
Chapter 13 :Organisms and Populations
Chapter 14 :Ecosystem
Chapter 15 :Biodiversity and Conservation
Chapter 16 :Environmental Issues
“The beauty of a living thing is not the atoms that go in to it, but the way those atoms are put together.”
  • Carl Sagan