Chapter 3 Plant Kingdom

We have provided NCERT notes for the third chapter of Class 11 Biology, Plant Kingdom. These notes have been prepared by Vidyakul’s seasoned subject experts. Furthermore, they have been updated to the latest curriculum and guidelines.

Going through the NCERT notes for Class 11 Biology Chapter 3 will help students solve the complex in-text questions and prepare for their exams. These notes will also aid in preparing for future competitive exams such as NEET. Students can also visit Vidyakul to get free access to over 500 questions from 28 different books to strengthen their preparations for the exams. Continue reading the article to get the NCERT notes for Class 11 Biology Chapter 3.

CBSE CLASS 11 BIOLOGY CH-3

Points to Remember

To help guide students in their exam preparations for NCERT Class 11 Biology Chapter 3 Plant Kingdom, we have provided some of the important points to remember below:

• Plantae includes all photosynthetic multicellular plant groups comprising algae, bryophytes, pteridophytes, gymnosperms and angiosperms.
• Algae have three classes mainly on the basis of pigments- Chlorophyceae (green algae), Phaeophyceae (brown algae) and Rhodophyceae (red algae).
• All algae lack vascular tissue and thalli are mostly haploid. The sex-organs are normally one-celled without any sterile jacket.
• Bryophytes are first land plants with a main plant body of gametophytic nature.
• Bryophytes are similar to algae in being thalloid and non-vascular but dissimilar to algae in having multicellular jacketed sex organs.
• The sex organs are antheridia and archegonia in both bryophytes and pteridophytes.
• Sperms are always biflagellate in bryophytes whereas in pteridophytes they may be biflagellate or multiflagellate.
• In bryophytes, the adult sporophyte is always dependent on gametophyte.

Topics and Sub-topics

Classification of kingdoms has been discussed in previous chapters, but students will learn more about the plant kingdom here. According to the previous classification, fungi, which are representative of Monera, and Protista, which have cell walls, are now excluded from Plantae. However, blue-green algae (cyanobacteria) are part of the plant kingdom. This chapter describes algae, bryophytes, ferns, gymnosperms, and angiosperms.

Students will also explore the nature of these categories through relevant examples. This chapter also includes a classification of algae based on pigment type and stored food type, namely Chlorophyceae, Phaeophyceae and Rhodophyceae.

Before getting into the details of the NCERT notes, students can check the important topics included in Class 11 Biology Chapter 3 from the table below:

Exercise No.	Important Topics
3.1	Introduction to the Plant Kingdom
3.2	Algae
3.3	Division Bryophyta
3.4	Division Pteridophyta
	Gymnosperms
	Angiosperms
3.7	Life Cycles in Plants

Frequently Asked Questions

What are ‘Angiosperms’?

Angiosperms are plants that produce flowers and bear their seeds in fruits.

What are the main types of algae?

1. Euglenophyta (Euglenoids)2. Chrysophyta (Golden-brown algae and Diatoms)3. Pyrrophyta (Fire algae)4. Chlorophyta (Green algae)5. Rhodophyta (Red algae)

What are ‘Pteridophytes’?

A pteridophyte is a vascular plant (with xylem and phloem) that disperses spores.

Practice Questions

How are algae classified?

How are angiosperms different from gymnosperms?

Explain heterospory.

Why are blue-green algae not considered to be algae?

Explain the important characteristics of angiosperms.

Learn more about the same in Plant Kingdom Class 11 Notes pdf.

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