CBSE Class 10 Science Chapter 8 - How do Organisms Reproduce? Revision Notes - Free PDF Download
How Do Organisms Reproduce Class 10 Notes CBSE Science Chapter 8 (Free PDF Download)
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FAQs on How Do Organisms Reproduce Class 10 Notes CBSE Science Chapter 8 (Free PDF Download)
1. What is Fission in Reproduction?
Ans: Fission, as discussed in How do organisms reproduce Class 10 notes, is the separation of a single body into two new bodies by duplication of the genetic material of the organism. In the process of fission, deoxyribonucleic acid undergoes division to form two parts. The second process is termed as cytokinesis. Binary fission is an example of asexual reproduction and organisms falling under Bacteria and Archaea exhibits this type of reproduction process.
2. What are the Benefits of Vegetative Propagation?
Ans: The most prominent advantages of vegetative propagation have been outlined in Class 10 Science Chapter 8 notes. One of the major benefits is that the new plants will retain the genetic material of a single parent. It means that if specific desirable traits have been identified in the parent plant, the same will be replicated in the offspring as well. However, for that to happen, growing conditions have to be kept the same.
Notes of Chapter 8 Science Class 10 also mentions that in the case of vegetative propagation, the immature seedling phase is bypassed. Such development helps in reaching the mature phase faster.
3. What is Meant by Spore Formation?
Ans: Spore formation has been explained lucidly in Class 10 Chapter 8 Science notes. It is a process of asexual reproduction exhibited by plants such as moss, ferns, fungi etc.
Spores are essentially reproductive bodies which are unicellular. Those are present in a sac-like structure known as sporangia. On attaining maturity, spores burst out from sporangia and transmitted to various places with the help of wind, air or water.
4. What is the Function of Pollination in Plant Reproduction?
Ans: Class 10 Reproduction notes discuss pollination as the procedure of transmitting pollen from the male part of a flower, anther, to the female part of a flower, stigma. However, it must be noted in this regard that such happens between a male part of one flower to the female part of another flower. With pollination, a seed is produced from fertilised flowers, leading to the formation of fruit.
5. Where can I find Class 10 Chapter 8 How do organisms reproduce notes?
Ans: Vedantu offers students with revision notes of Chapter 8 How do organisms reproduce of Class 10 Science. These notes are beneficial to students as it helps them to understand all the important topics and concepts in the chapter better. These notes are written by subject experts in a simple and easy language. Students will be able to score well in their exams with the help of these revision notes. Some of the topics discussed in these notes include importance of variation, modes of reproduction, fragmentation, regeneration, spore formation, and many more. Most of these terms and concepts are important for students to learn and understand.
6. What are the various topics covered in Chapter 8 How do organisms reproduce of Class 10 Science?
Ans: There are many important topics and concepts that are discussed in Chapter 8 How do organisms reproduce of Class 10 Science. Some of these topics include various modes of reproduction like asexual reproduction, sexual reproduction, and reprodution in flowers. Students will even learn about the reproduction that involves cells, the process of DNA copy, and other additional cellular devices. Apart from this, students will learn about the DNA copying mechanisms as well. Other topics covered in Chapter 8 How do organisms reproduce of Class 10 Science Science include the understanding of the body design and use of reproductive modes by different organisms.
7. What are the advantages of sexual reproduction?
Ans: Sexual reproduction refers to the mode of reproduction between two individuals. Sexual reproduction has many advantages. Some of these include:
The offspring produced by the parents have characteristics of both of them
Sexual reproduction ensures that there are more variations of the species. This ensures the survival of the species as well
The offspring has the tendency to adapt to the environmental changes that the offspring may face around them
It is known that sexual reproduction improves the health of all human beings
8. What do you mean by asexual reproduction?
Ans: Asexual reproduction refers to the mode of reproduction that involves a single individual creating new generation of species. Under this mode of reproduction, a single parent generates/produces a new offspring. These offspring are physically and genetically identical to their parents. There are many unicellular and multicellular organism that follow asexual reproduction. However, not all of them follow this mode of reproduction. Some of these unicellular organisms exhibit the sexual mode of reproduction as well. Asexual mode of reproduction can include parthenogenesis, budding, fission, and fragmentation.
9. How is the process of pollination different from fertilization?
Ans: Pollination refers to the process of transferring pollen from the anther of one plant to the stigma. This process is done with the help of pollinators. Pollinators refer to the mode of transformation of pollen. These pollinators can include water, wind, and even a few insects. Whereas, fertilization refers to the process of a fusion between the male and female games. Fertilization takes place in the ovule. This further leads to the formation of zygote.