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Important Questions for CBSE Class 7 Science Chapter 12 - Reproduction in Plants

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Last updated date: 22nd Mar 2024
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Boost your Performance CBSE Class 7 Science Chapter 12 Important Questions - Reproduction in Plants Free PDF Download

Class 7 science chapter 12 is called “Reproduction in Plants” and it pertains to explaining all the reproductive processes and organs in plants. It is an important chapter because it explains what happens in plants to create more plants, and also explains the process of pollination. These are both two important processes which are highly necessary if all living beings would like to carry on living - pollination and plant reproduction are what facilitate the process of us breathing and the carrying on of the existence of life on Earth as we know it. Vedantu provides free pdf of NCERT Solutions Class 7 Science chapter 12 important questions. Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Maths Students who are looking for the better solutions, they can download Class 7 Maths NCERT Solutions to help you to revise complete syllabus and score more marks in your examinations.

Study Important Questions for Class 7 Science Chapter 12 – Reproduction in Plants

Very Short Answer Questions: 1 mark

1. Which of the following is a vegetative part of the flower? 

a) Pistil b) Anther c) Leaf d) Seed 

Ans:  c) Leaf


2. Which of the following is the female part of the flower? 

a) Style b) Anther c) Filament d) Sepal 

Ans: a) Style


3. A piece of branch containing a ____________ is essential for propagation by cutting. 

a) Bud b) Eye c) Flower d) Node 

Ans: d) Node


4. Scars present on the tuber of potato are called as__________. 

a) Stem b) Branch c) Eye d) Sapling 

Ans: c) Eye


5. Propagation by leaf buds is seen in ______________. 

a) Bryophyllum b) Rose c) Onion d) Potato

Ans: a) Bryophyllum


Short Answer Questions: 3 marks

Differentiate between:

6. Cutting and budding

Ans: The difference between cutting and budding are:

Cutting

Budding

Vegetative Propagation by a piece of stem or branch with at least one node. 

Vegetative Propagation by adventitious buds.

The cut branch is planted in soil which develops roots and grows into a new plant.

When the bud becomes mature it detaches from the parent plant and grows into a new plant.

Example: Rose, Champa, etc.

Potatoes, Yeast, etc.


7. Budding in potato and budding in Bryophyllum

Ans: The difference between potato budding and Bryophyllum budding are:

Budding in Potatoes

Budding in Bryophyllum

Vegetative propagation by adventitious buds from the stem.

Vegetative propagation by adventitious buds from the leaf.

Bud arises from nodes of a modified stem known as the eye.

Bud arises from the leaf margin.


8. Stamen and Pistil

Ans: The difference between stamen and pistil are as follows:

Stamen

Pistil

It is the male reproductive part of a plant.

It is the female reproductive part of a plant.

It contains pollen consisting of anther and filament.

It contains stigma, style, and ovaries.

It produces pollen grains.

It produces ovules.

Occurs outside the pistil.

It is present in the center of the flower.


9. Budding in potato and budding in yeast

Ans: Difference between budding in potato and budding in yeast are as follows:

Budding in Potatoes

Budding in Yeast

Vegetative propagation by adventitious buds.

Budding in yeast is a form of asexual reproduction.

Adventitious bud is formed at the eye or node of the potato.

Small buds outgrow from the parent body.

It forms a whole new multicellular plant.

It forms single-celled yeast.


10. Spore formation in fungus and spore formation in fern

Ans: Difference between spore formation of fungus and fern are:

Spore Formation in Fungus

Spore Formation in Ferns

Spore formation inside a structure called sporangia.

Spore formation inside a structure called sori.

Sporangia are microscopic structures that are not clearly visible

Sori are clearly visible on the leaf margins


Long Answer Questions: 5 marks

11. Draw and label the parts of a bisexual complete flower.

Ans:

Bisexual Flower


12. Why is pollination important for sexual reproduction in plants?

Ans: The fertilization of male and female gametes in an organism is known as sexual reproduction. In plants, the male gamete is found in pollen grains and the pollen grains are found in the anther part of the flower. Whereas, female gametes are present inside the pistil. For fertilization to occur male gamete need to come in contact with the female gamete which is carried out with the help of pollination. Pollination is the process by which the pollen grains are transferred to the stigma of the pistil so that the male gamete can fuse with the female gamete which is present inside the ovary of the pistil. After fertilisation zygote is formed. Hence, pollination is a crucial step for sexual reproduction in plants. Pollination can be of two types: i) self-pollination and ii) cross-pollination.

 

13. What are the different methods of seed dispersal and how are the seeds adapted for the same?

Ans: Seeds dispersed to different areas for better colonization and survival. Seeds can be dispersed by different methods using different means depending on the seed’s adaptation. 

  1. Dispersal by wind: Seeds that are dispersed by wings.

Adaption: lightweight, dry, feathered, or winged. 

Example: Winged seeds of drumstick and maple, seeds of grasses and sunflowers, etc.

  1. Dispersal by water: Seeds that are dispersed by water.

Adaption: light and buoyant as well as water-resistant. 

Example: This can be seen in coconut which is a buoyant floating seed with an outer fibrous water-resistant coating. 

  1. Dispersal by animals: Such seeds are adapted to attach to the body of the animal as they graze or pass along the plants. 

Adaptation: Seeds usually have spiny or hook-like structures that attach to the bodies of the animals and are then carried away to distant places.

Example: Mango, Guavas, etc.

  1. Dispersal by fruit bursts: When fruits burst the seeds within are released far from the parent plant. 

Example: This is seen in castor


Q4. Explain the importance of seed dispersal.

Ans: Seed dispersal is the process of spreading a plant seed away from its parent plant. Seed dispersal is important in many ways such as: 

  1. Prevents competition between new plants and parent plants for the limited nutrients, sunlight, and water. 

  2. Seed dispersal also ensures the continuity of the species and prevents the plant from extinction. 

  3. Seed dispersal allows plants to invade and colonize newer areas. 

  4. It reduces the chance of predators destroying the whole plant species.

  5. Speed dispersal also makes plants adapt to new environments.


Class 7 Science Ch 12 Important Questions - Free PDF Download

After we finish studying, it is important to thoroughly revise what we have tried to learn to make sure that we have learnt it well enough. Revision to studying is a reinforcement that is quite necessary, without which the entire process of studying goes quite to waste. Imagine that you have studied the diagram of all the parts of a flower, but you forgot to revise it the night before your exam. Two things can happen during the exam - you may remember what the diagram looked like but forget how to label, or you may remember the labels but forget how to draw it… neither option is good, is it? Thus, we need to be fully prepared for our exams using all the tools that are given to us.

Vedantu has prepared a list of important questions on Reproduction in Plants for class 7 students with the answers of these questions included. The best way to revise a subject after you have finished studying it is to go through the important questions for the same. Doing so ensures that you have studied appropriately to be able to answer these questions, and it also gives you the correct answer for it as well, framed in the manner that will fetch you full marks. Download the NCERT class 7 science chapter 12 important questions prepared by Vedantu which have been provided below.


Understanding the Important Questions for Class 7 Science Chapter 12

The Reproduction in Plants class 7 important questions are of several kinds and have been divided accordingly in the PDF version of the same. The classifications according to which these questions have been divided are as follows:

  • Very Short Answer Questions: In class 7 science, very short answer questions consist of multiple-choice questions and fill in the blanks questions and each of these questions carries 1 mark each.

  • Short Answer Questions: In class 7 science, short answer questions consist of questions which ask you to find the difference between two concepts and simple definitions and explanations of concepts, where each question carries 2 marks each.

  • Long Answer Questions: In class 7 science, long answer questions consist of those for which you are required to write more descriptive answers explaining the topics that are asked about in the paper, often including diagrammatic representations of the topics as well. Long answer questions can carry either 3 marks or 4 marks each.

In class 7 science, there are many chapters in the textbook which all amount to minuscule parts of the final marks coming from the question paper.

Below is the breakdown of marks for the science paper in class 7:


Ch 12 Science Class 7 Important Questions - Weightage Marks - Table will be updated soon.

The internal assessment includes project work to be done by the student, and the written final exam is taken from the contents and chapters of the textbook.


Benefits of the Class 7 Science Chapter 12 Important Questions

There are several benefits of the class 7 science, Reproduction in Plants important questions, and they are listed as below:

  • Important questions help a student understand how to study for an exam according to the kind of questions that can come.

  • Vedantu’s compilation of important questions on Reproduction in Plants for class 7 is also equipped with the answers to these questions.

  • These questions are in a PDF document, thus, they can be downloaded.

  • The class 7 science chapter 12 important question-answers are there completely free to use and download.

  • The important questions have been taken from previous years’ question papers for class 7 science and the answers have been written by teachers of science at Vedantu.

  • These important questions will give you a good idea about how you are supposed to study for the exam appropriately.


Conclusion

When studying CBSE Class 7 Science Chapter 12 on "Reproduction in Plants" by Vedantu, it's crucial to focus on key questions to grasp the concepts effectively. Understanding the process of plant reproduction is vital, especially in sections that cover the different methods plants use to create new ones. Pay close attention to topics like pollination, fertilization, and seed formation as they are central to plant life cycles. These aspects play a significant role in how plants grow and multiply. So, concentrate on these essential sections to ensure a solid understanding of plant reproduction in your CBSE Class 7 Science studies.

FAQs on Important Questions for CBSE Class 7 Science Chapter 12 - Reproduction in Plants

1. Which Questions are Most Likely to Come in the Class 7 Science Exam Paper?

Some of the most common questions to come in the class 7 science exam paper are filling in the blank questions, definition questions, differentiating between two concepts and very importantly, diagrammatic questions. The diagrammatic questions can come from any of the chapters, but most commonly from the physics and biology chapters. The other questions are likely from any of the other chapters in the book, thus, it is important to be thorough with all the concepts of all the chapters. While it could be considered guesswork which questions will most likely come in the exam, taking a look at the important questions and previous question papers are helpful.

2. What all is Included in the Reproduction in Plants Chapter in Class 7 Science?

The Reproduction in Plants chapter in class 7 science includes the following topics:

  • Modes of reproduction in plants.

  • Asexual reproduction

  • Vegetative propagation

  • Budding

  • Fragmentation

  • Spore formation

  • Sexual reproduction

  • Identifying the parts of a flower

  • Pollination

  • Fertilisation

  • Fruits and seed formation

  • Seed dispersal

Mentioned above are the topics which are part of Reproduction in Plants, chapter 12 of class 7 science. They are important topics to learn because without plant reproduction, life on earth will be finished as we know it, and it is of incredible importance to be aware of such processes taking place around us.

3. Do the NCERT Solutions for Class 7 Science Chapter 12 provide accurate answers?

The Solutions for Class 7 Science Chapter 12, which can be downloaded in PDF format free of cost from Vedantu's website, are absolutely correct. It was created by subject-matter specialists and renowned instructors. They not only have an extensive understanding of the CBSE curriculum, but they also have practical experience with it. As a result, they regularly alter the answers in accordance with the NCERT guidelines. You can expect the most accurate answers adhering to the syllabus as well as elaborate explanations as well.

4. What is sexual reproduction in plants?

The process by which blooming plants reproduce sexually is called pollination. Male sex organs are known as the stamens, and female sex organs are known as the pistils and can be found in the flowers to facilitate reproduction. Reproduction in plants is characterized by both self-pollination as well as cross-pollination. A plant's own pollen fertilises its own ovules, which is known as self-pollination (or self-fertilisation). Agents of dispersion, such as bees etc., play a significant role in the pollination process by transferring the pollen from one flower to another. To know more and practice questions, students can download the Vedantu app.

5. How can I download the Important Questions for Reproduction in Plants Class 7?

The Important questions are easily available on the Vedantu site. 

  • Click on this link-Important Questions for Class 7 Science Chapter 12.

  • The webpage with Vedantu’s Important questions for Class 7 Science Chapter 12 will open.

  • To download this, click on the Download PDF button, and you can view the solutions offline free of cost. 

You may always go to the Vedantu website and engage with different professors who can help you understand the chapters in a straightforward manner if you need extra help with this or any other chapter.

6. What is the importance of reproduction Class 7?

We call it reproduction since it's the process through which parents produce new organisms. As a result of reproduction, different species of plants and animals do not go extinct on Earth. In order to maintain ecological equilibrium and ensure the survival of life on Earth, this process is essential. Living creatures require reproduction to ensure that their species survives generation after generation. It preserves a population's variety as well as its inheritance. Hence, reproduction is very crucial for all living beings on the planet.

7. What is asexual reproduction?

Asexual reproduction allows a person to reproduce without involving another member of the species. Asexual reproduction is demonstrated by the division of a bacterial cell into two daughter cells. For example, you may take an embryo from one parent plant and get it to regenerate itself into an entirely new plant by employing asexual propagation techniques. The new plant that is created is genetically identical to its predecessor. In asexual propagation, the plant's vegetative components, such as stems, roots, or leaves, are used.