it's about the respiration in plants and also types of respiration include with stages of respiration.
Size: 384.73 KB
Language: en
Added: Mar 09, 2019
Slides: 17 pages
Slide Content
Name Muneeb ur rehman Class No 651 Department Agronomy Presentation Reespiration in plants
Respiration Energy: Ability To do work is called Energy. Law of thermodynamics in Biological system All biological organisms require energy to survive. In a closed system, such as the universe, this energy is not consumed but transformed from one form to another.
Cells , for example, perform a number of important processes. These processes require energy. And these energy come from respiration. Respiration: Glucose breakdown in the presence of oxygen to form carbon dioxide and water with the release of energy. respiration 6C 6 H 12 6 + 6O 2 respiration 6CO 2 + 6H 2 0+ energy
Energy released is coupled to the synthesis of ATP. ATP is essential for plant cell maintenance, growth and development. Carbohydrate Conversion Starch glucose Sucrose + water glucose + fructose
Respiration in Leaves.
Stages of respiration 1) Glycolysis 2) Kreb’s Cycle 3) Electron transport chain
Glycolysis: Glycolysis is occurs in the cytoplasm of cells, outside of mitochondria. Glycolysis is requires glucose and 2 ATP to split the glucose molecule, 2 NAD+ that will become electron carrier molecules, and 4 ADP + P that will become 4 ATP.
Kreb’s Cycle; mitochondrial matrix only if oxygen present converts pyruvate via acetyl CoA into CO 2 ; generates NADH and FADH 2
Electron transport hain: mitochondrial membranes = cristae transfers electrons from NADH and FADH 2 to reduce O 2 to H 2 O and generate ATP.
Electron transport System NADH and FADH 2 e - e - H + H + ATP 4e - + 4H + + O 2 2H 2 O cyt . oxidase
Types of Respiration: Aerobic respiration Anerobic respiration
Aerobic Respiration Aerobic respiration take place in presence of oxygen . Aerobic respiration occurs in most cells. Combustion: complete. Anerobic Respiration Anerobic respiration take place without oxygen. Anaerobic respiration occurs mostly in prokaryotes. Incomplete.
Stages: Glycolysis, Krebs cycle, Electron Transport Chain. Site of reaction: Cytoplasm and mitochondria. Amount of energy: High (36-38 ATP molecules). Stages: Glycolysis, Krebs cycle, Electron Transport Chain. Site of reaction: Cytoplasm and mitochondria. Amount of energy: Lower (Between 36-2 ATP molecules).