NCERT Solutions Class 7 Science Chapter 8 Reproduction in Plants

The NCERT Solutions for Class 7 Science Chapter 8, Reproduction in Plants, is an invaluable resource for students aiming to understand fundamental concepts in plant biology. This NCERT Solution for Class 7 Science chapter covers the mechanisms of plant reproduction, including both sexual and asexual methods, and the role of flowers in the reproductive process. By studying these structured questions and answers, students can deepen their understanding of how plants propagate and ensure the survival of their species.

Aligned with the latest CBSE NCERT syllabus, these solutions equip students for exams by clarifying essential topics and reinforcing learning. The solutions also provide in-depth explanations of concepts such as pollination, fertilization, and seed dispersal, offering students a solid grasp of the plant life cycle.

This blog provides detailed NCERT Solutions for all questions in Chapter 8, with step-by-step explanations to make learning effective and engaging.

1.0NCERT Solutions Chapter 8 Reproduction in Plants Free PDF Download

As you know, NCERT solutions are helpful, so you must practice them as much as possible. However, the question arises of how you can access them. Don't worry; here, we are providing you with the free PDF of NCERT solutions for Class 7 Science Chapter 8: Reproduction in Plants.

2.0Topics Covered in Chapter 8: Reproduction in Plants

• Modes of Reproduction
• Asexual Reproduction
• Vegetative Propagation
• Budding
• Fragmentation
• Spore FormationSexual Reproduction
• Pollination
• Fertilisation
• Fruits and Seed Formation
• Seed Dispersal

3.0NCERT Questions with Solutions for Class 7 Science Chapter 7 - Detailed Solutions

• 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 _______. Ans. (a) Vegetative propagation (b) Unisexual (c) Pollination (d) Fertilisation (e) Wind, Water and Animals
• Describe the different methods of asexual reproduction. Give examples. Ans. The various modes of asexual reproduction in plants are as follows: (i) Vegetative propagation: It is the ability of a plant to produce new plants from roots, stems, leaves and buds. Vegetative propagation is divided into two types. (a) Natural vegetative propagation: This type of vegetative propagation occurs easily in nature and involves simple vegetative parts. Example Potato. (b) Artificial vegetative propagation: This type of vegetative propagation is performed manually and generally occurs in laboratory conditions. The formation of a complete plant from a stem cutting of rose is a common example of this method. (ii) Budding: It involves the formation of a new individual from a bulb-like projection called a bud. The bud grows and gets detached from the parent to form a new individual. It is commonly observed in Yeast. (iii) Fragmentation: It is a form of asexual reproduction where a new organism is formed from the fragments of the parent body. It is the only mode of asexual reproduction in algae. (iv) Spore formation: Many nonflowering plants reproduce through spore formation. Spores are tiny cells protected by a thick wall. Fungi such as bread moulds also reproduce asexually using this method.
• Explain what you understand by sexual reproduction. Ans. Sexual reproduction is a process which involves production of seeds. It requires two parents. Most plants reproduce sexually with the help of flowers. The main function of a flower is to reproduce and therefore develop new seeds that can grow into new plants.
• State the main difference between asexual and sexual reproduction. Ans. Difference between sexual and asexual reproduction:

Sketch the reproductive parts of a flower. Ans.

• Explain the difference between selfpollination and cross-pollination. Ans. Differences between self-pollination and cross-pollination:

• How does the process of fertilisation take place in flowers? Ans. When pollen grains land on stigma, it germinates and gives rise to a pollen tube that passes through the style and reaches the ovary of a pistil. When the pollen tube reaches an ovule, it releases the male gametes. A male gamete fuses with a female gamete in the ovule. This process is known as fertilisation. The cell which is formed after the fusion of a male and a female gamete is known as zygote. This zygote divides several times in order to form the embryo present inside the seed. Pollen grain (germinating)

• Describe the various ways by which seeds are dispersed. Ans. Seed dispersal occurs by the following agencies. (a) Dispersal by animals: There are many ways by which birds and animals can disperse seeds. For example, birds and animals can eat the fruits and excrete the seeds away from the parent plant. Some seeds have hooks like structures that get attached to the animal's body and are carried to new sites. (b) Dispersal by wind: Seeds that get dispersed by wind are usually smaller in size or they have wings or hair-like structures. For example, winged seeds of drumsticks, hairy fruit of sunflower etc. are dispersed by wind. (c) Dispersal by water: Many aquatic plants or plants that live near water has seeds that can float and are carried away by water. For example, coconut can float and is dispersed by water. (d) Dispersal by explosion: Sometimes the seeds are dispersed by the bursting of fruits with sudden jerks. The seeds get scattered or distributed far from the parent plant. Examples of such plants are castor and balsam.
• Match items in Column-I with those in Column-II.

Ans.

• Tick $(\sqrt{})$ 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 female gamete is called - (i) fertilisation (ii) pollination (iii) reproduction (iv) seed formation (c) Mature ovary forms the - (i) seed (ii) stamen (iii) pistil (iv) fruit (d) A spore producing organism is - (i) rose (ii) bread mould (iii) potato (iv) ginger (e) Bryophyllum can reproduce by its - (i) stem (ii) leaves (iii) roots (iv) flower Ans. (a) (iv) Flower (b) (i) Fertilisation (c) (iv) Fruit (d) (ii) Bread mould (e) (ii) Leaves

4.0Benefits of NCERT Solutions for Class 7 Science Chapter 8

• Provides a thorough understanding of plant reproduction, covering both sexual and asexual methods.
• Explains plant propagation and the importance of reproduction in species continuity.
• Offers detailed insights into modes of reproduction and the role of flowers in sexual reproduction, aiding comprehension.
• Includes clear explanations and diagrams to help students visualize reproductive structures and their functions.
• Highlights key aspects like pollination, fertilization, and seed dispersal in the plant life cycle.
• Prepares students for exams with practice questions that enhance problem-solving skills and boost confidence.