KPK Textbook Board Biology Book For class 12th

In today post we are going to provide the download link for Kpk board text book for class 12th in pdf form for free. This text book of biology consists of 14 chapters. Which are Respiration, Homeostasis, Support and Movements, Nervous Coordination, Behavior, Reproduction, Development and Aging, Inheritance, Chromosomes and DNA, Evolution, Man and his environment, Biotechnology, and Biology and Human Welfare.

Respiration is the stepwise and enzymatic complex oxidation reduction processes by which food is broken down into more simpler materials for the purpose to release the maximum amount energy at the cellular level. In aerobic respiration, organism break down their food with the help of oxygen into simple compounds like water and CO2 to release energy. 

The surface or area of organism body where respiratory gaseous exchange with the environment or surrounding takes place is called respiratory surface. The respiratory surface must have these different properties like Thin epithelium, More permeable, Large surface area, Wet surface, Capillary network, and ventilation.

File Type: Pdf

File Size:  150 MB

File Pages: 388


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