Study Chapter Details

UP Board Class 11 Biology – Respiration in Plants

The chapter “Respiration in Plants” in UP Board Class 11 Biology explains how plants release energy from organic compounds to carry out life processes. It highlights the importance of respiration in growth, reproduction, and maintenance of metabolic activities.



Students learn about the types of respirationaerobic, anaerobic, and alternate pathways—and the stages involved: glycolysis, Krebs cycle (TCA cycle), and electron transport chain (oxidative phosphorylation). The chapter also covers substrates of respiration, energy yield (ATP production), and the differences between aerobic and anaerobic respiration.

Practical aspects like respiration in seeds, fruits, and germinating plants are discussed to show real-life applications. Understanding respiration is crucial for studying plant metabolism, bioenergetics, and overall physiology, forming the basis for advanced topics in biology and preparation for competitive exams like NEET and CUET.