Class 7 Science Notes for Reproduction in Plants (PDF) – Study Material

Class 7 Science Reproduction in Plants – Get here the Notes, Question & Practice Paper of Class 7 Science for topic Reproduction in Plants Notes. Reproduction in Plants Notes for Class 7 Science are here. You can download the Reproduction in Plants Notes PDF to study all the topics in this chapter. Moreover the Class 7 Science notes include chapter summary, definitions, examples, and key pointers for Reproduction in Plants. Thus if you are studying class Science (विज्ञान), then the Reproduction in Plants notes will help you easily understand the topic and ace it.

Class 7 Science Notes for Reproduction in Plants

Reproduction in Plants is a critical part in the study of Science. In India, it is taught in class. Therefore the Class 7 Notes for Science topic Reproduction in Plants have been compiled by teachers and field experts. They explain the complete chapter of Reproduction in Plants in one-shot.

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Reproduction in Plants Notes for Class 7 Science

Reproduction in Plants Class 7 notes is as follows. You can view the document here and also download it use it anytime for future reference whenever you want to brush up your concepts of Science.

Chapter 8 – Reproduction in Plants

Reproduction:

• The process of producing offspring by the parent is called reproduction.
• It is a biological process.
• The offspring produced can and cannot be the exact copy of the parent.

Mode of Reproduction:

• There are two modes of reproduction, asexual reproduction and sexual reproduction.

Asexual Reproduction

• Reproduction that occurs without the involvement of male and female gamete is called asexual reproduction.
• Seed is not produced in this mode of reproduction.

Different Types of the Asexual Reproductions are:

Vegetative Propagation

• Reproduction that occurs through vegetative part of the plant i.e., leaves, stems and roots is called vegetation propagation.
• Examples of organism produced by vegetative propagation are:
  A. Onion, garlic and tulip are produced by the stems.
  B. Sweet Potato and Dahlia are produced by the roots.
  C. Bryophyllum is produced by leaves.

Budding

• Bud is the small bulb-like structure bulging from the yeast cell.
• Bud when it gets detached it develops into a new organism and this process of producing new organism from the bud when it gets detached is called budding.
• Examples of organisms produced by budding are yeast and hydra.

Fragmentation

• The process by which organisms get divided into a number of fragments and each fragment develops into a new individual is called fragmentation.
• Fragmentation in spirogyra is an example of this type.

Spore Formation

• The process by which organisms get divided into a number of spores and each spore develops into a new individual under favorable conditions is called spore formation.
• Spore formation in fungi, fern and bacteria are some examples of this type.

Sexual Reproduction

• Reproduction that occurs with the involvement of male and female gametes is called sexual reproduction.
• Male gamete produced by pollen grains and female gamete produced by ovary of the pistil fuses to form a zygote.
• Stigma, style and ovary together forms pistil.
• Seed is produced in this mode of reproduction.
• This reproduction occurs through the reproductive part of the plant i.e., flower.
• The flower has both male reproductive parts called stamens and female reproductive part called pistil.
• Flowers that has either pistil or stamens is called unisexual flowers and flowers that has both pistil and stamens is called bisexual flowers.

Pollination

• When pollen is transferred from the anther to the stigma of a flower is called pollination.
• When the pollen of a flower lands on the stigma of the same flower it is called selfpollination.
• When the pollen of a flower lands on the stigma of another flower it is called crosspollination

Fertilization

• After pollination occurs fertilization, where male and female gamete fuses to form zygote and later zygote develops into embryo.
• After fertilization, fruits are developed by ovary and seeds are developed by ovules.

Seed Dispersal

• The movement of seeds by water, wind and animals is called seed dispersal.
• Examples of the seeds dispersed by animals are xanthium and urena.
• Examples of seed dispersed when the fruit burst with sudden jerk are castor and balsam.
• Seed dispersal is important because it reduces overcrowding of seeds of plants and hence each plant gets an adequate amount of water and sunlight.

Fission

Fission is a kind of asexual reproduction that happens in unicellular organisms like the amoeba. Here the single cell that is the parent will divide into two or more daughter cells. In binary fission, the single-cell will be divided into two daughter cells. In multiple fissions, the single parent cell will divide into many daughter cells.

Fragmentation

This is a kind of asexual reproduction called cloning, where the organism gets split into various fragments. Then each of the fragments will develop into a fully grown and mature individual, which are the clones of the original organism.

Budding

Budding is a kind of asexual reproduction where a new organism will develop from an outgrowth or a bud because of cell division at one particular parent organism site. This then eventually breaks away from the parent cell.

Spore Formation

Spore formation is the term that is used for reproduction through spores. The spores are microscopic and are a reproductive body. When the spores are released into the area surrounding it, this develops into plants under the conditions if they are favourable. Examples include fungi. Vegetative Propagation is also a kind of asexual reproduction where the new plant gets produced from stems, roots, buds, and leaves.

Sexual Reproduction in Plants

Plants also have sexual reproduction. This occurs where there is a fusion of the gametes. This eventually gives seeds, which then develop into a new plant. The flowers are a part of the plant which goes through sexual reproduction. The male gametes are the pollen grains that get produced by the anthers. The female gametes are the ovule that gets produced by the pistils. When there is pollination, the male and the female gamete meet. These get fused by the process of fertilization, and then this gives birth to a new plant by the formation of fruit and seeds.

Pollination

Pollination is the process of transferring the pollen grain from the male flower parts from the anthers to the stigma that is the female part of the plant.

Types of Pollination

Pollination is of two kinds. When the pollen lands on the same flower stigma, then this is known as self-pollination. When the pollen lands on another flower’s stigma, then this is crosspollination.

Candidates who are ambitious to qualify the Class 7 with good score can check this article for Notes, Study Material, Practice Paper. Above we provided the link to access the Notes, Important Question and Practice Paper of Class 7 Science for topic Reproduction in Plants.

All Topics Class 7 Science Notes

Chapter wise notes for Science (विज्ञान) are given below.

• Nutrition in Plants
• Nutrition in Animals
• Heat
• Acids, Bases and Salt
• Physical and Chemical Changes
• Respiration in Organism
• Transportation in Animals and Plants
• Reproduction in Plants
• Motion and Time
• Electric Current and Its Effects
• Light
• Forest our Life Line
• Wastewater Story

Class 7 Notes for All Subjects

• Class 7 Maths Notes
• Class 7 Science Notes

NCERT Solutions for Class 7 Science Reproduction in Plants

The Reproduction in Plants notes here help you solve the questions and answers. Also, you can complete the Class 7 Reproduction in Plants worksheet using the same. In addition you will also tackle CBSE Class 7 Science Important Questions with these Class 7 notes.

However if you still need help, then you can use the NCERT Solutions for Class 7 Science Reproduction in Plants to get all the answers. Reproduction in Plants solutions contain questions, answers, and steps to solve all questions.

Notes for All Classes

• Class 6 Notes
• Class 7 Notes
• Class 8 Notes
• Class 9 Notes
• Class 10 Notes
• Class 11 Notes
• Class 12 Notes

Reproduction in Plants Notes for Class 7 Science – An Overview

Name of Topic	Reproduction in Plants
Class	6
Subject	Science
All Class 7 Science Notes	Class 7 Science Notes
All Class 7 Notes	Class 7 Notes

Class 7 Reproduction in Plants Notes for All Boards

You can use the Class 7 Science notes of Reproduction in Plants for all boards.

The education boards in India for which Reproduction in Plants notes are relevant are – CBSE, CISCE, AHSEC, CHSE Odisha, CGBSE, HBSE, HPBOSE, PUE Karnataka, MSBSHSE, PSEB, RBSE, TBSE, UPMSP, UBSE, BIEAP, BSEB, GBSHSE, GSEB, JAC, JKBOSE, KBPE, MBOSE, MBSE, MPBSE, NBSE, DGE TN, TSBIE, COHSEM, WBCHSE.

Therefore you can refer to these notes as CBSE, CISCE, AHSEC, CHSE Odisha, CGBSE, HBSE, HPBOSE, PUE Karnataka, MSBSHSE, PSEB, RBSE, TBSE, UPMSP, UBSE, BIEAP, BSEB, GBSHSE, GSEB, JAC, JKBOSE, KBPE, MBOSE, MBSE, MPBSE, NBSE, DGE TN, TSBIE, COHSEM, WBCHSE notes for class Class 7 / Class / Science for the topic Reproduction in Plants.