Important Questions for CBSE Class 7 Science Chapter 8 - 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:

7. Budding in potato and budding in Bryophyllum

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

8. Stamen and Pistil

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

9. Budding in potato and budding in yeast

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

10. Spore formation in fungus and spore formation in fern

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

Long Answer Questions: 5 marks

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

Ans:

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.

2. 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. 

3. 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.

4. 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 8 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 8 important questions prepared by Vedantu which have been provided below.

Understanding the Important Questions for Class 7 Science Chapter 8

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 8 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 8 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 8 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.