CBSE Revision Notes

Cell Cycle And Cell Division Class 11 Notes – Chapter 10

It is a universally accepted fact that the cell is the most basic, structural and functional unit of life. A cell could be an individual organism by itself (such as an amoeba) or the cells could be a part of a larger organism (such as a cat). But how does this fundamental unit multiply for growth or repair?

What is the Cell Cycle?
Essentially, the cell cycle is an orderly sequence of events that occur before the cell actually divides and gives rise to new cells. This is a very important process and has varying implications from growth and development to repair of the organism. Please refer Cell Cycle and Cell Division Class 11 Notes for more revision notes.

Biomolecules Class 11 Notes – Chapter 9

The topic of Biomolecules Class 11 Notes in class 11 biology mainly explains the different types of biomolecules and their importance in living organisms. This topic is not only important for the class 11 exam but also several questions are asked from this chapter in the competitive exams.

To help the students to understand this topic properly, here the biomolecular notes for class 11 are provided. Students can check these notes and learn this chapter in a more effective way. Along with the notes, some important questions related to biomolecules are also provided.

Cell The Unit of Life Class 11 Notes – Chapter 8

What is a Cell?
A cell is defined as the most basic, structural and functional unit of all living organisms. Essentially, a cell is a structure that contains organelles which provide necessary functions to sustain itself. However, not all cells are the same.

Plants have cells that are vastly different from animals. One of the primary differences between the two is the absence of cell walls in animal cells. Cells also vary in size, with the largest one in the human body being the egg or the female ovum. It measures roughly around 1 millimetre across. The smallest cell is the granule cell which is found in the human cerebellum, measuring roughly around 4.5 micrometres in size. Please refer Cell The Unit of Life Class 11 Notes for more revision notes.

Structural Organisation In Animals Class 11 CBSE Notes – Chapter 7

In a living body, usually, the tissues, cells, organs carry out different functions that ensure the survival of the being.Thus in chapter 7 of class 11 biology textbook, students learn about how these different parts work. Students will also examine living things like cockroach, frog and earthworm and understand their anatomy. To make the chapter less complicated and confusing we are providing CBSE notes for Structural Organisation in Animals Class 11 Notes chapter 7 biology here. These notes can be a very useful study tool from an examination point of view. With these notes, students can clear their doubts and understand the concepts in an easy manner. Furthermore, students can have a thorough revision of the entire chapter before the exams.

Anatomy of Flowering Plants Class 11 Notes – Chapter 6

The plants that we see today is the result of 470 million years of evolution. During this long timeframe, plants have evolved into an innumerable number species, with each member having their own characteristic features. The last to evolve among these is the angiosperms or the Flowering Plants.

What are Flowering Plants?
Angiosperms are the only plants in the plant kingdom capable of producing flowers, which eventually become fruits, however, not all flowers become fruits. Furthermore, flowering plants are the most diverse, with over 295,000 species discovered to date. Please refer Anatomy of Flowering Plants Class 11 Notes for more revision notes.

Morphology of Flowering Plants Class 11 Notes – Chapter 5

Morphology is the branch of biology which deals with the study of structure and form. It is basically about the study of forms, external features and relative positions of different organs on plants. Flowering plants show a great variety of form, shape and size. The size ranges from the Lemna and minute Wolffia (0.1cm) to the large sized Banyan and tall Eucalyptus (up to 100 metre). Please refer Morphology of Flowering Plants Class 11 Notes for more revision notes.

Animal Kingdom Class 11 Notes – Chapter 4

Salient features and classification of animals non chordates up to phyla level and chordates up to class level (three to five salient features and at least two examples of each category). Please refer Animal Kingdom Class 11 Notes for more revision notes.

Plant Kingdom Class 11 Notes – Chapter 3

Salient features and classification of plants into major groups – Algae, Bryophyta, Pteridophyta, Gymnospermae and Angiospermae (three to five salient and distinguishing features and at least two examples of each category); Angiosperms – classification up to class, characteristic features and examples. Please refer Plant Kingdom Class 11 Notes for more revision notes.

Biological Classification Class 11 Notes – Chapter 2

Five kingdom classification; Salient features and classification of Monera, Protista and Fungi into major groups: Lichens, Viruses and Viroids. Please refer Biological Classification Class 11 Notes for more revision notes.

The Living World Class 11 Notes – Chapter 1

What is living?
Biodiversity;  Need for classification; three domains of life; taxonomy and systematics; the concept of species and taxonomical hierarchy; binomial nomenclature; tools for the study of taxonomy-museums, zoological parks, herbaria, botanical gardens. Please refer The Living World Class 11 Notes for more revision notes.