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NCERT Book for Class 7 Science Chapter 12 Reproduction in Plants
Class 7 Science students should refer to the following NCERT Book Chapter 12 Reproduction in Plants in Class 7. This NCERT Book for Class 7 Science will be very useful for exams and help you to score good marks
Chapter 12 Reproduction in Plants NCERT Book Class 7
12 Reproduction in Plants
To produce its kind is a characteristic of all living organisms. You have already learnt this in Class VI. The production of new individuals from their parents is known as reproduction. But, how do plants reproduce? There are different modes of reproduction in plants which we shall learn in this chapter.
12.1 MODES OF REPRODUCTION
In Class VI you learnt about different parts of a flowering plant. Try to list the various parts of a plant and write the functions of each. Most plants have roots, stems and leaves. These are called the vegetative parts of a plant. After a certain period of growth, most plants bear flowers. You may have seen the mango trees flowering in spring. It is these flowers that give rise to juicy mango fruit we enjoy in summer. We eat the fruits and usually discard the seeds. Seeds germinate and form new plants. So, what is the function of flowers in plants? The flowers perform the function of reproduction in plants. Flowers are the reproductive parts of a plant. A flower may have either the male part or the female part or both male and female parts.
There are several ways by which plants produce their offspring. These are categorised into two types: (i) asexual, and (ii) sexual reproduction. In asexual reproduction plants can give rise to newplants without seeds, whereas in sexual reproduction, new plants are obtained from seeds.
Asexual reproduction
In asexual reproduction new plants are obtained without production of seeds or spores.
Vegetative propagation
It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds. Since reproduction is through the vegetative parts of the plant, it is known as vegetative propagation.
Exercises
1. Fill in the blanks:
(a) Production of new individuals from the vegetative part of parent is called_____________.
(b) A flower may have either male or female reproductive parts. Such a flower is called_____________.
(c) The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as ________.
(d) The fusion of male and female gametes is termed as __________.
(e) Seed dispersal takes place by means of ______ and _____________.
2. Describe the different methods of asexual reproduction. Give examples.
3. Explain what you understand by sexual reproduction.
4. State the main difference between asexual and sexual reproduction.
5. Sketch the reproductive parts of a flower.
6. Explain the difference between self-pollination and cross-pollination.
7. How does the process of fertilisation take place in flowers?
8. Describe the various ways by which seeds are dispersed.
9. Tick ( ) the correct answer:
(a) The reproductive part of a plant is the
(i) leaf (ii) stem (iii) root (iv) flower
(b) The process of fusion of the male and the female gametes is called
(i) fertilisation (ii) pollination
(iii) reproduction (iv) seed formation
Please refer to attached file for NCERT Class 7 Science Reproduction in Plants
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NCERT Class 7 Science Acids Bases and Salts |
NCERT Class 7 Science Physical and Chemical Changes |
NCERT Class 7 Science Weather Climate and Adaptation |
NCERT Class 7 Science Winds Storms and Cyclones |
NCERT Class 7 Science Soil |
NCERT Class 7 Science Respiration in Organisms |
NCERT Class 7 Science Transportation in Animals |
NCERT Class 7 Science Reproduction in Plants |
NCERT Class 7 Science Motion and Time |
NCERT Class 7 Science Electric Current and its Effects |
NCERT Class 7 Science Light |
NCERT Class 7 Science Water A Precious Resource |
NCERT Class 7 Science Forests Our Lifeline |
NCERT Class 7 Science Wastewater Story |
NCERT Book Class 7 Science Chapter 12 Reproduction in Plants
The above NCERT Books for Class 7 Science Chapter 12 Reproduction in Plants have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 12 Reproduction in Plants Science Class 7 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 12 Reproduction in Plants NCERT etextbooks as the exams for Class 7 Science are always asked as per the syllabus defined in these ebooks. These Class 7 Chapter 12 Reproduction in Plants book for Science also includes collection of question. Along with Science Class 7 NCERT Book in Pdf for Chapter 12 Reproduction in Plants we have provided all NCERT Books in English Medium for Class 7 which will be really helpful for students who have opted for english language as a medium. Class 7 students will need their books in English so we have provided them here for all subjects in Class 7.
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