Class 11 Biology NCERT Body Fluids and Circulation explains the transport of nutrients, gases, hormones, and wastes in animals. This chapter covers blood, lymph, their composition, and functions, as well as the structure and working of the human heart, cardiac cycle, and blood vessels. Students also learn about double circulation, cardiac output, and regulation of heart rate.
By studying Body Fluids and Circulation, learners understand how circulatory systems maintain homeostasis and support life processes. The chapter is essential for CBSE board exams and competitive exams like NEET, where questions on blood, heart, and circulation are frequently asked.