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Did you know that plants, which look so familiar, actually represent one of the most complex systems of life on our planet? In the NCERT Class 11 Biology Chapter 3 Notes Plant Kingdom, students will get simple points, important diagrams, and previous-year questions with answers. The chapter notes will help the students to learn this interesting classification, from simple algae to flowering angiosperms. The NCERT Notes are important for self-study to get the best results in the exams conducted by CBSE and also the NEET.
The NCERT Class 11 Biology Notes of this chapter help you explore important differences among algae, bryophytes, pteridophytes, gymnosperms, and angiosperms. The notes will break down the types, features, and evolutionary importance of these groups, supported by diagrams and easy explanations. With the help of these NCERT Notes for Class 11, students will be able to answer questions of Class 11 very confidently and do well in their exams.
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NCERT solutions for Class 11 Biology Chapter 3 Plant Kingdom
Here, students will get a simple, clear explanation of each group of plants, from algae to angiosperms, along with key points, classification tables, and diagrams. These Plant Kingdom Class 11 notes will help you revise quickly, practice important previous-year questions, and strengthen your concepts for CBSE, NEET, or self-study. With the help of these notes, students can very well understand the complex topics and be ready to solve any kind of questions based on this chapter.
The Plant kingdom covers all green plants, including algae, bryophytes, pteridophytes, gymnosperms, and angiosperms. Earlier classification placed fungi, bacteria, and cyanobacteria under plants, but now these are separated. Classification has evolved from simple characters (e.g., shape, colour) to modern phylogenetic systems using molecular, cytological, and chemical data.
The different classes of algae have been discussed below:
The plants make their food through photosynthesis, have cell walls made of cellulose, and store food in the form of starch. They are necessary for maintaining oxygen levels and forming the foundation of food chains. The following points show the important features of the Plant Kingdom:
Types of reproduction include sexual reproduction and asexual reproduction, depending on the group. Alternation of generations is a common pattern in their life cycles. It includes two distinct multicellular phases:
This alternation maintains genetic diversity and provides the continuation of the plant life cycle.
Plants perform essential physiological processes that maintain growth, development, and their relationship with the environment. These include:
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Some of the questions which have come in past years from the chapter are given below:
Question 1. The giant Redwood tree (Sequoia sempervirens) is a/an
Option 1. Gymnosperm
Option 2. Free fern
Option 3. Pteridophyte
Option 4. Angiosperm
Answer :
Redwood trees are a Gymnosperm which have earned many labels; known as the tallest tree, oldest tree, largest by trunk volume, etc. They belong to the Cupressaceae family and include species like the Coast Redwood and Giant Sequoia. Their towering height and immense lifespan make them iconic symbols of resilience and natural beauty.
Hence, the correct answer is option (1) Gymnosperm.
Question 2. If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm?
Option 1. 36
Option 2. 54
Option 3. 18
Option 4. 72
Answer :
Endosperm is formed through the fusion of a haploid male gamete and a diploid secondary nucleus. Consequently, the endosperm has a triploid nucleus, which will have three times the number of chromosomes as in a haploid nucleus.
Hence, the correct answer is option (2) 54.
Question 3. Plants of this group are diploid and well-adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
Option 1. Monocots
Option 2. Gymnosperms
Option 3. Pteridophytes
Option 4. Dicots
Answer :
Cones are a primary feature of gymnosperms. Furthermore, gymnosperms are admirably adapted to extreme conditions. The plants that produce seeds are called gymnosperms, although they don't have fruits like angiosperms do. These plants generate a cone-like structure at the terminal of stalks or on the surface of scales or leaves.
Hence, the correct answer is option (2) Gymnosperms.
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Given below are the notes of each chapter, which provide a clear and concise summary of each chapter, making it easier for students to revise important concepts for exams.
The following are the primary topics that are discussed in Class 11 Plant Kingdom notes and are highly important.
1. Algae
2. Bryophytes
3. Pteridophytes
4. Gymnosperms
5. Angiosperms
Subject specialists have created Class 11 Biology chapter 3 notes that will give you further information on the subject. You can strengthen your foundation with these Class 11 Biology chapter 3 notes. The segment explores every facet of the Plant Kingdom.
According to Plant Kingdom Class 11 notes,
The presence or lack of pigments is the primary foundation for classifying algae. The categorisation is as follows:
One of the most essential topics in the NEET exam is the Plant Kingdom. You'll be asked a lot of questions about the Plant Kingdom. NCERT Biology Chapter 3 for Class 11 notes are very important in biology, and you must have sufficient and in-depth knowledge and understanding of the concept in order to achieve good scores in exams.
The production of two different types of spores in the same plant is known as heterosporous.
Importance of heterospory:
Heterosporous is responsible for the development of seeds in gymnosperms and angiosperms. It is necessary for the separation of male and female gametophytes.
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