- All organisms multiply or reproduce offspring of their own kind.
- In plants there are two modes of reproduction, namely (a) Asexual and (b) Sexual.
- There are several methods of asexual reproduction such as fragmentation, budding, spore formation and vegetative propagation.
- Sexual reproduction involves the fusion of male and female gametes.
- In vegetative propagation new plants are produced from different vegetative parts such as leaves, stems and roots.
- Flower is the reproductive part of a plant.
- A flower may be unisexual with either the male or the female reproductive parts.
- A bisexual flower has both the male and the female reproductive parts.
- The male gametes are found inside the pollen grains and female gametes are found in the ovule.
- Pollination is the process of transfer of pollen grains from the anther of one flower to the stigma of the same or another flower.
- Pollination is of two types, self-pollination and cross-pollination. In self-pollination, pollen grains are transferred from the anther to the stigma of the same flower. In cross-pollination, pollen grains are transferred from the anther of one flower to the stigma of another flower of the same kind.
- Pollination takes place in plants with the help of wind, water and insects.
- The fusion of male and female gametes is called fertilization.
- Fertilized egg is called zygote. Zygote develops into an embryo.
- Fruit is the mature ovary whereas ovule develops into a seed, which contains the developing embryo.
- Seed dispersal is aided by wind, water and animals.
- Seed dispersal helps the plants to
(i) prevent overcrowding,
(ii) avoid competition for sunlight, water and minerals
(iii) invade new habitats.
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CBSE
Class–VII | CHAPTER – 1 Integers | NMMS
Revision Notes à Click
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Tracing
Changes Through a Thousand Years | NMMS Revision Notes | Class 7 | Social à Click
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New
Kings and Kingdoms | NMMS Revision Notes | Class 7 | Social à Click Here
The
Delhi Sultanate | NMMS Revision Notes | Class 7 Social à Click
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The
Mughal Empire | NMMS Revision Notes | Class 7 Social à Click Here
Tribes
Nomads and Settled Communities | NMMS Revision Notes | Class 7 Social à Click
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Devotional
Paths to the Divine | NMMS Revision Notes | Class 7 Social à Click
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The
Making of Regional Cultures | NMMS Revision Notes | Class 7 Social à Click
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Eighteenth
Century Political Formations | NMMS Revision Notes | Class 7 Social à Click
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Environment
| NMMS Revision Notes | Class 7 Social à Click
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Inside
Our Earth | NMMS Revision Notes | Class 7 Social à Click Here
Our
Changing Earth | NMMS Revision Notes | Class 7 Social à Click Here
Air |
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Water
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Human
Environment Interactions the Tropical | NMMS Revison Notes | Class 7 Social à Click
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Life
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On
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How
the State Government Works | NMMS Revision Notes | Class 7 Social à Click
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Role
of the Government in Health | NMMS Revision Notes | Class 7 Social à Click
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Growing
up as Boys and Girls | NMMS Revision Notes | Class 7 Social à Click
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Women
Change the World | NMMS Revision Notes | Class 7 Social à Click Here
Understanding
Media | NMMS Revision Notes | Class 7 Social à Click Here
Markets
Around Us | NMMS Revision Notes | Class 7 Social à Click Here
A
Shirt in the Market | NMMS Revision Notes | Class 7 Social à Click Here
Nutrition
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Nutrition
in Animals | NMMS Revision Notes | Class 7 Science à Click Here
Heat |
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Acids
Bases And Salts | NMMS Revision Notes | Class 7 Science à Click Here
Physical
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Respiration
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Transportation
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Force
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Reproduction
In Plants | NMMS Revision Notes | Class 7 Science à Click Here
Motion
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Electric
Current and its Effects | NMMS Revision Notes | Class 7 Science à Click
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Light
| NMMS Revision Notes | Class 7 Science à Click Here
Waste
Water Story | NMMS Revision Notes | Class 7 Science à Click Here
How
When and Where | NMMS Revision Notes | Class 8 Social à Click
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From
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Ruling
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Tribals
Dikus and Vision of Golden Age | NMMS Revision Notes | Class 8 Social à Click
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When
People Rebel | NMMS Revision Notes | Class 8 Social à Click Here
Weavers
Iron Smelters and Factory Owners | NMMS Revision Notes | Class 8 Social à Click
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Civilising
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Women
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