NCERT Solutions Class 10 Science Chapter 8

NCERT Solutions for Class 10 Science Chapter 8

Class 10 Science Chapter 8 discusses reproduction among organisms.  It is quite important for students of Class 10, which is why it is important to thoroughly prepare and comprehend the chapter. The NCERT Solutions for Class 10 Science Chapter 8 by Extramarks help students understand the basic concepts and prepare well for the exam. The solution has been prepared by subject-matter experts, which ensures that it is comprehensive and also easy to understand. A brief solution to NCERT textbook questions, it is a perfect resource for students looking for first-time understanding or last-minute revision. 

To access NCERT Solution for Class 10 Biology Chapter 8 – How do Organisms reproduce, all you have to do is – check out the solutions on Extramarks’ website or app. 

NCERT Solutions for Class 10 Science Chapter 8 – How do Organisms Reproduce?

To perform well in  CBSE Class 10,  it is important to study diligently throughout the academic year. In addition to your course books, referring to Extramarks’ NCERT solutions will also help you ace your class 10 exams. Whether you need help with History, Science, Mathematics, or any other subject, Extramarks NCERT Solutions Class 10 is designed to make each and every chapter of all subjects easy to revise quickly. So students are advised to get the Solutions from the Extramarks website and enjoy the process of learning conveniently and effortlessly at their own pace. 

The following chapters are also included in NCERT Solution for Class 10:

Chapter 1 Chemical Reactions and Equations
Chapter 2 Acids, Bases and Salts
Chapter 3 Metals and Non-metals
Chapter 4 Carbon and Its Compounds
Chapter 5 Periodic Classification of Elements
Chapter 6 Life Processes
Chapter 7 Control and Coordination
Chapter 8 How do Organisms Reproduce?
Chapter 9 Heredity and Evolution
Chapter 10 Light Reflection and Refraction
Chapter 11 Human Eye and Colourful World
Chapter 12 Electricity
Chapter 13 Magnetic Effects of Electric Current
Chapter 14 Sources of Energy
Chapter 15 Our Environment
Chapter 16

How Do Organisms Reproduce Class 10?

NCERT Class 10 Science Chapter 8 is an important chapter, which explains how various organisms reproduce. Along with the reproduction of organisms, the chapter also talks about the male & female reproductive systems, the difference between them, changes observed post-puberty, and all-about asexual reproduction. Additionally, Class 10 Science Chapter 8 covers the DNA coping mechanisms alongside reproductive modes for different species like humans, animals, flowers, etc. 

Reproduction Class 10

Reproduction means to re-create something like their own. Organisms need to reproduce to continue the chain of life and pass on the genes.  Reproduction is nature’s most known way for living species to upkeep their being. 

Though every living species reproduces, they have different ways of doing it. The two primary methods of reproduction are sexual and asexual. Like any other thing in this world, both these reproduction methods come with their set of advantages and disadvantages. The Class 10 Science NCERT Solutions Chapter 8 helps students understand everything about reproduction in detail. The explanations are written in basic language thereby, making learning quick & uncomplicated. . 

Class 10 Chapter 8 NCERT Solutions

If you need a comprehensive solution prepared by subject experts for Class 10 Science Chapter 8 session, choose Extramarks’ NCERT Solution for Class 10 Biology Chapter 8 – How do Organisms reproduce

Just like any other lesson in Class 10 Science, Chapter 8 has a number of in-text and end-text questions. . To ensure that you are answering these questions correctly, NCERT Solutions Class 10 Science Chapter 8 can prove to be handy. Class 10 Science Chapter 8 NCERT solutions not only include accurate solutions to these questions but explain them with the help of diagrams.  

Available on Extramarks’ website and app, NCERT Solutions Class 10 Science Chapter 8 can be accessed by students at their convenience.

Importance of NCERT Solutions For Class 10 Science Chapter 8 

Extramarks Class 10 Science NCERT Solutions Chapter 8 is designed to help students ace their board exams! Here are a few reasons why you need to refer to Extramarks’ Class 10 Science Chapter 8 NCERT Solutions:

  • NCERT Solutions For Class 10 Science Chapter 8 can be accessed online at Extramarks’ website or app.
  • Every answer given to textbook questions in NCERT Solutions Class 10 Science Chapter 8 is carefully prepared in line with CBSE Class 10 examination guidelines. 
  • The answers are conscientiously prepared in an easy-to-understand language. NCERT Solutions Class 10 Science are accurate and to the point because these have been prepared by experienced faculty. . 
  • Furthermore, the answers also come with relevant illustrations and examples, which makes it less challenging for students to understand the topics and concepts effectively. 
  • Extramarks class 10 Science NCERT Solutions Chapter 8 are prepared pointwise to help students to master the topic with ease. 
  • Point-wise answer narration also makes it easy for students to revise the lessons during exams.

Solved Examples

  1. If a woman is using a copper−T, will it help in protecting her from sexually transmitted diseases?

Ans: No. A copper−T does not prevent contact with bodily fluids like semen. It will not protect a woman from sexually transmitted diseases. A copper-T can only prevent implantation in the uterus and future pregnancy.

  1. Which of the following is not a part of the female reproductive system in human beings?

(a) Uterus

(b) Ovary

(c) Fallopian tube

(d) Vas deferens

Solution: (d) Vas deferens

The Vas deferens is a long muscular tube found in the male reproductive system. It travels from the epididymis into the pelvic cavity and is biologically located behind the bladder. The primary function of the Vas deferens is to carry the mature sperm to the urethra. Alternatively, Vas deferens also conduct urine to the outside of the body.

Q.1 Asexual reproduction takes place through budding in

1. amoeba.
2. yeast.
3. plasmodium.
4. leishmania.

b. Yeast

Explanation: Out of the four organisms mentioned, only in yeast asexual reproduction takes place though budding. Asexually Amoeba and Leishmania reproduce through binary fission and Plasmodium reproduces by multiple fission method.

Q.2 Which of the following is not a part of the female reproductive system in human beings?

1. Ovary
2. Uterus
3. Vas deferens
4. Fallopian tube

Vas deferens

Explanation: Ovary, uterus and fallopian tube are the parts of the female reproductive system in human beings whereas vas deferens is the part of male reproductive system in human beings.

Q.3 The anther contains

1. sepals.
2. ovules.
3. carpel.
4. pollen grains.

d) Pollen grains

Explanation: The anther contains pollen grains. Sepals are generally green in colour and protect flower in bud stage. Ovules are present in ovary of the carpel (female reproductive organ of plant).

Q.4 What are the advantages of sexual reproduction over asexual reproduction?

Advantages of sexual reproduction over asexual reproduction are:

1. Sexual reproduction is responsible for variations in a population.
2. Variations in individuals are responsible for survival of a species in an ecosystem.
3. Sexual reproduction plays an important role in origin of new species and is a beginning for evolution.
4. Sexual reproduction helps in providing stability to populations of species.

Q.5 What are the functions performed by the testis in human beings?

Testes are the male reproductive organs in human beings. Functions of testis are:

1. It produces male gametes i.e., sperms.
2. It also produces male hormone called testosterone that regulates the formation of sperms and is responsible for secondary sexual characters in human males at the time of puberty.

Q.6 Why does menstruation occur?

Menstruation is a process in which blood and mucosal tissues are discharged periodically from the inner lining of uterus through the vagina. In human female, every month one egg is released from one ovary. Simultaneously the uterus prepares itself for pregnancy. During this phase, the inner lining of the uterus gets thickened and new blood vessels are formed that will nourish the future embryo. If pregnancy does not occur, then the lining of the uterus breaks down slowly and the content is released in the form of blood and mucus through the vagina and the process is known as menstruation.

Q.7 Draw a lebelled diagram of the longitudinal section of a flower.

Q.8 What are the different methods of contraception?

The different methods of contraception are:

1. Barrier method: In this method, the meeting of ovum with sperm is checked with the help of a mechanical barrier. Mechanical barrier such as condoms are made of thin and flexible rubber. The mechanical barrier is available for both males and females. These are used to cover penis in males and vagina in females and prevent sperms from entering the uterus during sexual intercourse to avoid pregnancy.
2. Oral contraceptive: This is method in which hormones are introduced in the female partner to prevent the release of egg to avoid pregnancy. The hormones are taken orally in the form of tablets or pills.
3. Intrauterine devices (IUDs): Contraceptive devices such as the loop or Copper T are placed in the uterus that prevent sperms from reaching the egg and prevent pregnancy to occur.
4. Surgical methods: Transfer of gametes can be blocked by using surgical methods. Surgical method is an irreversible method of contraception. Surgically, in males, vas deferens is blocked to stop the sperm transfer. This process is known as vasectomy. In females, surgically fallopian tubes are blocked to carry the eggs to the uterus. This surgical procedure in females is called tubectomy.

Q.9 How are the modes for reproduction different in unicellular and multicellular organisms?

Unicellular organisms have single cell. Generally, unicellular organisms reproduce by asexual methods like binary fission, multiple fission, budding, etc. For example, Amoeba reproduces by binary fission, yeast reproduces by budding, and Plasmodium reproduces by multiple fission method. Multicellular organisms are made up of either simple cells or complex tissues and organs. Some of their cells are specialised to perform the function of reproduction. Multicellular organisms can employ the asexual methods of reproduction as well as sexual methods of reproduction. Asexual methods include budding, fragmentation, spore formation and vegetative propagation. Complex multicellular organisms possess a well developed reproductive system having specialised reproductive organs.

Q.10 How does reproduction help in providing stability to populations of species?

In an ecosystem, organisms of different species use their ability of reproduction to survive and maintain their populations in their niches.

In an ecosystem, every individual of a species struggle for food, shelter and protection for their survival and existence. Factors like death at the end of natural life cycle, competition, predation, migration and sudden environmental changes keep on reducing population of species on a regular basis. The process of reproduction is the only way to overcome this continuous depletion of individuals from the populations of diverse species. Therefore, reproduction helps in providing stability to populations of species.

Q.11 What could be the reason for adopting contraceptive methods?

Contraceptive methods are mainly adopted because of the following reasons:

1. These devices prevent unwanted pregnancies to occur.
2. These devices not only help in restricting the number of children but also help in maintaining age gap between children. The age gap between children help parents in good bringing up of their children and less number of children ensures the improved living standards of a family.
3. These devices also prevent the spread of sexually transmitted diseases (STDs).
4. These devices play a role in controlling increase in human population and help in reducing pressure on life supporting natural resources such as food, air, water, fuel, etc.

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FAQs (Frequently Asked Questions)

1. What are a few of the topics discussed in NCERT Solutions for Class 10 Science Chapter 8?

A few of the many topics discussed in NCERT Solutions For Class 10 Science Chapter 8 include:

  •       Various reproduction modes
  •       Reproduction in numerous living species like flowers, animals, plants, and human beings.
  •       A detailed explanation of the whats, whys, and hows of reproduction. Along with cell creation in the process of DNA copy and additional cellular devices.
  •       DNA & its coping mechanism.

2. Can I leave Class 10 Science Chapter 8 as an option?

If you wish to ace your Class 10 with flying colours, do not leave any topic of Chapter 8 Science as an option. It is a crucial chapter both from the CBSE examination and life point of view. When it comes to the examination:

  •       Multiple questions are asked from this chapter every year.
  •       Class 10 Science Chapter 8  carries high weightage.

When it comes to practicality:

  •       As a living being, it is significant to understand how we survive and create to maintain our existence.
  •       Additionally, other elements of the chapter like menstruation, STDs, etc. must be understood for optimal upkeep of health.

 We would advise you not to leave any chapter for the last minute preparation.  If you think that the textbook tonality is too tough for you, check out NCERT Solutions For Class 10 Science Chapter 8 notes that make it convenient for students to remember everything clearly

3. Which NCERT Solutions for Class 10 Science Chapter 8 is just apt for students?

There is no doubt that NCERT Solutions For Class 10 Science Chapter 8 by Extramarks’ is the best solution out there. Four modest reasons:

  • I It’s easily available. Thus, ensuring students from every economic stratum can have access to it. 
  • NCERT Solutions For Class 10 Science Chapter 8 is CBSE-examiner approved, and undergo revision and refinement as per the latest CBSE curriculum and are thoroughly checked and approved by the experts. 
  • The resource is a complete package – offers first-hand studying, and last-minute revision & highlights all the important questions.
  • A perfect amalgamation of text & relevant diagrams for students to score excellent grades.

4. From where can I get access to NCERT Solutions For Class 10 Science Chapter 8?

You can get access to Class 10 Science NCERT solutions Chapter 8 on Extramarks’ website and app. The NCERT solutions for Class 10 Science Chapter 8 is available on Extramarks’ website and app.

5. What can I do if my teacher didn’t teach Class 10 Science Chapter 8?

In case you happen to miss any chapter or important topic, you need not be stressed or anxious about it. You don’t need to waste your valuable time looking for help elsewhere.  In order to access authentic notes and study materials, simply log on to Extramarks’ website or app, and search for NCERT Solutions For Class 10 Science Chapter 8. In fact, here, you will find NCERT solutions for all Class 10 subjects.

6. Do diagrams hold any weightage in NCERT Class 10 Science examination?

Absolutely, diagrams hold very high weightage in NCERT Class 10 Science examination. If you want a really good grade in your CBSE Class 10 Science examination, you must:

  • Ace the art of drawing. 
  • Practice regularly. 
  • Ensure that your diagrams are neat and clean.. 
  • Never forget to label your diagram.. 

By incorporating these essential tips, you can increase your chances of getting better marks than everyone else in CBSE Class 10 Science examination.

7. How to score full marks in CBSE Class 10 Science?

Scoring full marks in a theoretical subject like science is difficult but not impossible. With NCERT Solutions For Class 10 Science by your side,  It shouldn’t be that difficult. Below listed are a few tried, tested and proven tips to score full marks in CBSE Class 10 Science:

  •       Prepare well in advance. Just revise the topics in the last few days before the exam and do not pick anything new.
  •       Practise mock tests. Remember good marks in the mock tests lead to exceptional results.
  •       Practise your diagrams as much as you practice your theory. Most students lose their marks because of poor diagrams or wrong labelling. Every time you learn an answer that has a diagram, make sure that you practise the diagram with it.
  •       Always study from reliable sources. Most students either study by themselves or refer to guides that are not in line with CBSE examination guidelines. NCERT Solutions For Class 10 Science Chapter 8 stands synonymous with reliability and accurate answers.
  •       Trust yourself. If you have prepared well for the examination, be confident that you will do well. Nervousness leads to unnecessary mistakes and careless slips.