NCERT Class 10 Science Chapter 7 PDF – How Do Organisms Reproduce? Free Download

Chapter 7 of Class 10 Science, titled How Do Organisms Reproduce?, explores one of the most essential processes in biology — reproduction. It explains how living beings give rise to new individuals, either through asexual or sexual means. From basic cell division to complex human reproductive systems, this chapter covers various methods of reproduction in different organisms including bacteria, plants, and humans. It also introduces the role of DNA and discusses health-related topics like contraception and STDs.

I decided to write about this chapter because it is not only important for the Class 10 board exam, but it also builds the foundation for higher biology studies in Class 11 and 12. Many students either skip or only superficially study this topic because they find it uncomfortable or too technical. But if you approach it with curiosity, it’s actually one of the most interesting chapters in the book. I remember this chapter helping me understand real-world issues like menstrual hygiene, sexual health, and the science behind pregnancy and fertilisation. So, having a PDF version is extremely helpful for clear revision and diagram practice without depending on physical textbooks all the time.

Key Topics Covered in Chapter 7: How Do Organisms Reproduce?

The chapter is divided into several sections to help students understand reproduction from the simplest to the most advanced organisms.

Asexual Reproduction

Fission (Binary and Multiple) – common in amoeba and paramecium
Budding – in yeast and hydra
Spore Formation – in fungi
Regeneration – in planaria
Vegetative Propagation – in plants (potato, rose, etc.)
Fragmentation – in algae like spirogyra

Sexual Reproduction in Plants

Structure of a flower
Pollination (self and cross)
Fertilisation and seed formation

Sexual Reproduction in Humans

Male and female reproductive systems
Menstruation cycle
Fertilisation and development of embryo
Reproductive health and contraception
Sexually transmitted diseases (STDs)

This chapter includes several important diagrams that are frequently asked in board exams — like human reproductive organs, structure of a flower, and types of asexual reproduction.

Why You Should Not Skip This Chapter

It has both short and long answer-type questions in the exam
Topics like menstruation, STDs, and contraception are important for general awareness
It covers life processes connected to DNA, heredity, and evolution
Diagrams are commonly asked in the CBSE board and even in competitive exams

Many students hesitate to ask doubts related to human reproduction in class. That’s why referring to the NCERT PDF helps you revise and understand these concepts privately and at your own pace. I personally found this PDF helpful for last-minute revision and for drawing accurate diagrams.

Download PDF

Click here to download NCERT Class 10 Science Chapter 7: How Do Organisms Reproduce? PDF

NCERT Class 11 History Chapter 6 PDF (Hindi): मूल निवासियों का विस्थापन

Chapter 6 of Class 11 History (Hindi Medium), मूल निवासियों का विस्थापन, explores how indigenous communities across Australia, America, and New Zealand were displaced by European settlers. It explains how native populations lived in harmony with nature, practiced unique cultures, and followed their own systems of social organisation long before Europeans arrived. The chapter also describes how colonisation disrupted their lives through land seizure, forced labour, disease, and cultural destruction. It gives a clear picture of how modern nations were built on lands that originally belonged to indigenous people.

While history generally highlights kings, explorers, and governments, this chapter brings us closer to ordinary tribal communities who faced displacement despite being the original inhabitants of their land. Understanding their struggles helps students recognise how colonisation shaped the modern world, and why issues related to indigenous rights, land protection, and cultural preservation are still important today. This chapter encourages empathy and helps readers look at global history from multiple viewpoints, not just from the dominant narratives.

About Chapter 6: मूल निवासियों का विस्थापन

This chapter focuses on the lives of indigenous people before European arrival, the changes brought by colonisation, and the long-term impact on native societies.