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Reproduction In Plants

ICSE · Class 8 · Biology

Quick revision notes for Reproduction In Plants — ICSE Class 8 Biology. Key concepts, formulas, and definitions for last-minute revision.

45 questions40 flashcards5 concepts

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A labeled diagram illustrating various modes of asexual reproduction mentioned in the chapter: fragmentation (Planaria, Fungi, Filamentous Algae), budding (Yeast), and binary fission (Amoeba).
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Key Topics to Revise

1

1. Modes of Reproduction

  • Reproduction means producing young ones of the same kind.
  • Asexual reproduction involves only one parent and no fusion of gametes.
  • Sexual reproduction involves two parents and fusion of male and female gametes.
2

2. Asexual Reproduction in Plants

  • Binary fission occurs in bacteria.
  • In binary fission, the nucleus splits into two and the cell splits into two identical daughter cells.
  • Multiple fission occurs in Chlorella and Chlamydomonas, where one cell divides into four daughter cells.
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3. Natural Vegetative Propagation

  • Vegetative reproduction can occur through stem, leaf, or root.
  • Ginger, potato, and onion are modified stems because they store food and help in vegetative propagation.
  • Ginger has nodes, internodes, scaly leaves, and axillary buds at the nodes.
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4. Artificial Vegetative Propagation

  • Cutting, layering, grafting, and micro-propagation are artificial methods of vegetative propagation.
  • In cutting, a stem piece with an axillary bud is planted in moist soil and grows into a new plant.
  • In layering, a branch is bent to the ground, covered with soil, and later cut from the parent plant after roots form.

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Full Notes

Key Concepts

Reproduction means producing young onesAsexual reproduction takes place with oneIn bacteriaIn Chlorella and ChlamydomonasIn yeast

Frequently Asked Questions

What are the important topics in Reproduction In Plants for ICSE Class 8 Biology?
Key topics in Reproduction In Plants include Mind map showing the two main modes of plant reproduction and their key characteristics, Flowchart showing the step-by-step process of binary fission from parent cell to two daughter cells, Flowchart comparing budding and fragmentation processes in asexual reproduction. These are the concepts ICSE Class 8 examiners draw on most — study them first, then practise related questions.
How to score full marks in Reproduction In Plants — ICSE Class 8 Biology?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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