CBSE Important Questions for Class 10 Science Chapter 8 PDF

CBSE Important Questions for Class 10 Science Chapter 8: Chapter 8 of Class 10 Science focuses on How Do Organisms Reproduce?. This chapter explains the various methods of reproduction in living organisms, emphasizing both asexual and sexual reproduction. Understanding the concepts of gametogenesis, fertilization and the role of reproductive health is essential.

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CBSE Important Questions for Class 10 Science Chapter 8 Overview

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CBSE Important Questions for Class 10 Science Chapter 8 PDF

CBSE Important Questions for Class 10 Science Chapter 8 PDF

CBSE Important Questions for Class 10 Science Chapter 8 How Do Organisms Reproduce

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• It is essential for the existence and continuity of a species, ensuring that life persists over time.
• It facilitates the transfer of genetic information to the next generation, maintaining the genetic lineage.
• It introduces variations in the next generation, which serve as the foundation for evolution and adaptation to changing environments.

1. Budding
2. Spore formation
3. Regeneration
4. Fragmentation

1. The characters of the parent plants are preserved, allowing for the propagation of good varieties.
2. Plants that do not produce viable seeds or produce very few seeds can be reproduced by this method (e.g., banana, potato, grapes).
3. It is an easier, quicker, and cheaper method of propagation.
4. It is easier to eliminate pathogens from any part of the plant through vegetative propagation.

1. Binary fission
2. Budding
3. Regeneration
4. Vegetative propagation

• Plasmodium reproduces by multiple fission , producing approximately 1000 daughter cells simultaneously.
• Leishmania reproduces by binary fission , where the parent cell splits longitudinally to produce two daughter cells.

1. New plants produced will be genetically identical to the parent plant, replicating desirable traits.
2. Orange plants that have lost the ability to produce seeds can still be propagated using vegetative methods.

1. Moisture
2. Suitable temperature
3. Food (nutrition)

1. Desirable features of the parent plant can be replicated in the new plants.
2. Flowers and fruits can be produced in a shorter time compared to seed-grown plants. The two plants raised by this method are banana and rose .

1. Preservation of desirable traits of parent plants.
2. Ability to propagate plants that do not produce viable seeds.
3. Speed and cost-effectiveness of the propagation method.
4. Elimination of pathogens from plant parts.

1. Replication of desirable features of the parent plant.
2. Faster flowering and fruiting compared to seed-grown plants.

• Asexual reproduction: No gametes are formed; fertilization does not take place.
• Sexual reproduction: Gametes are formed, and fertilization occurs, leading to the formation of a zygote.

Benefits of CBSE Important Questions for Class 10 Science Chapter 8

• Understanding Exam Format : Familiarizing themselves with the format and types of questions asked in previous exams helps students grasp how to approach similar questions in their own exams.
• Improved Time Management : By practicing these important questions, students can learn to manage their time effectively ensuring they can complete the exam within the allotted time.
• Enhanced Problem-Solving Skills : Regularly working on these questions helps students develop critical thinking and problem-solving skills which are important for success in exams.
• Increased Confidence : Mastering these questions builds confidence in students knowledge and abilities, reducing exam anxiety and enhancing their overall performance.
• Identification of Weak Areas : Practicing important questions enables students to identify their weak areas, allowing them to focus on topics that require additional attention before the exam.