NCERT Solutions Class 10 Science - Chapter 7 How Do Organisms Reproduce - PDF Download

NCERT Solutions for class 10 science Chapter 7, How do Organisms Reproduce helps the students to perform well in board exam. To help students to compare their answers with the sample responses, we provide detailed solutions to the NCERT class 10 science chapter 7 questions. These NCERT Solutions are prepared by highly experienced faculty of science and can be easily understood by students.

Chapter 7 of NCERT Solutions for class 10 Science provides information on reproduction in different organisms. This chapter includes information on the reproductive systems of the male and female organisms, the changes in the body during puberty, and asexual reproduction, which is the generation of new generations from a single person. NCERT Solutions Chapter 7 How do organisms reproduce provides information on important organisms used in various modes of reproduction according to their body design.

NCERT Solutions for Class 10 Science Chapter 7 Topics

7.1 Do Organisms Create exact copies of themselves?: In general, organisms do not make copies of each other. Reproduction is divided into two main modes: Asexual reproduction and sexual reproduction. Asexual reproduction occurs when the parent organism divides into two or produces offspring without the use of sperms and egg cells. For example, bacteria divide by binary fission, and yeast reproduce by budding.

Sexual reproduction occurs when gametes are fused between two parents. The result is an offspring with a mixture of genetic elements from both parents, resulting in genetic diversity. Each offspring is unique and is not an exact duplicate of either parent.

Subtopics covered in the section 7.1 Do Organisms Create exact copies of themselves?:

7.1.1 The Importance of Variation

7.2 Modes of Reproduction Used by Single Organisms: Single organisms can reproduce through multiple reproductive pathways to produce progeny. Reproduction pathways are often dependent upon the species, environment, and evolutionary constraints.

Subtopics covered in the section 7.2 Modes of Reproduction Used by Single Organisms:

7.2.1 Fission

7.2.2 Fragmentation

7.2.3 Regeneration

7.2.4 Budding

7.2.5 Vegetative Propagation

7.2.6 Spore Formation

7.3 Sexual Reproduction: Sexual reproduction is when two different organisms combine genetic material to create a new baby with different genes. It's usually done by combining sperm from one parent with eggs from the other. This type of reproductive cell is called a gamete. You can find sexual reproduction in lots of different types of organisms, like plants, animals and fungi.

Subtopics covered in the section 7.3 Sexual Reproduction: 

7.3.1 Why the Sexual Mode of Reproduction?

7.3.2 Sexual Reproduction in Flowering Plants

7.3.3 Reproduction in Human Beings

• Male Reproductive System

• Female Reproductive System

• What happens when the Egg is not Fertilised?

• Reproductive Health

Key Features of Class 10 Science Chapter 7

• Unlike other forms of life, reproduction is not necessary for the survival of an individual organism. 

• Reproduction involves the generation of DNA copies and other cellular apparatus by the cell involved.

• Different organisms use different reproductive mechanisms based on their body design. 

• For example, in fission, a lot of bacteria or protozoa just divide into 2 or more daughter cells. 

• Hydra, for example, can regenerate if it is broken down into pieces. It can also give out buds that become new individuals. 

• Some plants develop new roots, stems, and leaves through vegetative propagation. These examples are asexual reproduction, where a single individual creates new generations. 

• Sexual reproduction involves the generation of new individuals by two individuals. DNA copying mechanisms generate variations that are useful for the survival of a species. 

• Sexual reproduction allows for more variation to be generated. In flowering plants, pollen grains are transferred from anther to the stigma, which is called pollination, and then fertilisation.

• Sexual maturation is the physical changes that occur during puberty. For example, girls may have larger breasts and boys may have new facial hair.

• The human reproductive system is made up of the male reproductive system, which consists of the testes, which produces the sperm, the vas deferenia, the seminal vesicle, the prostate gland, the urethra, and the penis.

• The female reproductive system consists of the ovaries, the fallopian tubes, the uterus, and the vagina.

• Sexual reproduction in humans involves the release of sperm into the vagina of the female reproductive system.

• The fallopian tube is where fertilisation occurs.

• Contraception to prevent pregnancy can be done by using condoms, oral contraceptives, copper-T and other methods.

Benefits of Downloading the PDF of NCERT Solutions Class 10 Science Chapter 7 How do Organisms Reproduce 

• NCERT Solutions provide comprehensive and well-researched answers to all questions posed in this chapter, which helps students to understand the concepts clearly and helps them in their learning.

• The solutions provide clear explanations and diagrams, as well as examples, which help students to understand the complex concepts of reproduction in organisms better. This is especially useful for students who may find the subject difficult to understand.

• Class 10 Science is one of the most important years for students to prepare for the board exams. NCERT Solutions can help students prepare for the exams by providing accurate and comprehensive answers to various types of questions which may be included in the exam.

• Students can also refer to the solutions and review their own answers, which can help them to understand the content of the chapter better.

• The NCERT Solutions can also help students to self-asses

Benefits of Downloading the PDF of NCERT Solutions Class 10 Science Chapter 7 How do Organisms Reproduce 

• NCERT Solutions provide comprehensive and well-researched answers to all questions posed in this chapter, which helps students to understand the concepts clearly and helps them in their learning.

• The solutions provide clear explanations and diagrams, as well as examples, which help students to understand the complex concepts of reproduction in organisms better. This is especially useful for students who may find the subject difficult to understand.

• Class 10 Science is one of the most important years for students to prepare for the board exams. NCERT Solutions can help students prepare for the exams by providing accurate and comprehensive answers to various types of questions which may be included in the exam.

• Students can also refer to the solutions and review their own answers, which can help them to understand the content of the chapter better.

• The NCERT Solutions can also help students to self-assess and identify areas where more practice is needed or clarification is needed.

Frequently Asked Questions

Question 1: What is reproduction?

Answer 1: Reproduction refers to the process of creating new individuals of a common species to ensure the continuity of the species through generations.

Question 2: How do plants reproduce?

Answer 2: Plants reproduce sexually and asexually. Sexually reproducing plants produce seeds. Asexually reproducing plants reproduce by running, cutting, and bulbs.