CBSE Class 11 Biology Chapter Notes

Introduction
Biology is the study of living organisms and their interactions with the environment. The Class 11 Biology syllabus covers a wide range of topics, including cell structure, plant physiology, animal physiology, genetics, and evolution.

Cell Structure
The cell is the basic unit of life. The chapter covers the structure and function of different cell organelles such as the nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. It also includes the differences between plant and animal cells.

Plant Physiology
This chapter covers the various physiological processes in plants, including photosynthesis, respiration, plant growth and development, and transpiration. It also includes the differences between C3, C4 and CAM plants.

Photosynthesis in Higher Plants
Photosynthesis is the process by which green plants synthesize organic compounds from carbon dioxide and water in the presence of sunlight. This chapter covers the light-dependent and light-independent reactions of photosynthesis, the Calvin cycle, and the factors affecting photosynthesis.

Animal Physiology
This chapter covers the various physiological processes in animals, including digestion, respiration, circulation, excretion, and nervous coordination.

Genetics
This chapter covers the basics of genetics, including Mendel's laws of inheritance, the structure of DNA, and the process of DNA replication, transcription, and translation. It also includes the different types of genetic disorders.

Evolution
This chapter covers the theory of evolution, the evidences supporting it, and the mechanisms of evolution, including natural selection, genetic drift, and gene flow.

Conclusion
These chapter notes provide a concise summary of the Class 11 Biology syllabus. Students can use them as a quick reference for revision and exam preparation. It is important to note that these notes should not be used as a substitute for the textbook or classroom lectures.