Here is a concise outline of the key topics covered in the chapter “Respiration in Plants” for Class 11 Biology, tailored for NEET preparation:

 

Introduction to Respiration

 

Definition and significance

Cellular respiration vs. breathing

Glycolysis

 

Location: Cytoplasm

Steps and key enzymes

Products: Pyruvate, ATP, NADH

Fermentation

 

Types: Alcoholic fermentation, lactic acid fermentation

Conditions and products

Aerobic Respiration

 

Overview and significance

Pyruvate Decarboxylation

 

Location: Mitochondrial matrix

Conversion of pyruvate to Acetyl-CoA

Krebs Cycle (Citric Acid Cycle)

 

Location: Mitochondrial matrix

Key steps and intermediates

Products: CO2, ATP, NADH, FADH2

Electron Transport Chain (ETC)

 

Location: Inner mitochondrial membrane

Role of electron carriers

Formation of proton gradient

Chemiosmosis and ATP synthesis

Oxidative Phosphorylation

 

ATP synthesis through ATP synthase

Role of oxygen as the final electron acceptor

Respiratory Quotient (RQ)

 

Definition and calculation

RQ values for different respiratory substrates (carbohydrates, fats, proteins)

Amphibolic Pathway

 

Integration of catabolic and anabolic pathways

Factors Affecting Respiration

 

Temperature

Oxygen concentration

Water availability

These topics cover the essential aspects of respiration in plants, crucial for understanding cellular energy production and preparing for NEET Biology.