A good respiratory surface should have a high surface area, moist and thin walls and in contact with many blood capillaries to allow easy... View Article
Carbohydrates are the primary respiratory substrates, proteins, fats and organic acids also act as respiratory substrates under certain... View Article
Aerobic respiration produces more ATP than anaerobic respiration due to the complete oxidation of glucose to CO2 and water. O2 acts as the... View Article
Oxidative phosphorylation is the step where most of the ATP is produced. ATP synthesis is coupled with oxidation-reduction reactions occurring in... View Article
The three stages of cellular respiration are glycolysis, Krebs cycle and oxidative phosphorylation by the electron transport system (ETS). The... View Article
Theoretically, 38 ATP molecules can be produced by the complete oxidation of one glucose molecule in aerobic respiration. This is just an... View Article
Yes, CO2 is released in photorespiration. Photorespiration decreases the efficiency of carbon fixation and also utilises ATP. There is no... View Article
When there is no oxygen for cellular respiration, then some of the cells and microorganisms undergo anaerobic respiration or fermentation.... View Article
Glycolysis is the first step in cellular respiration. It occurs in the cytoplasm. Two molecules of pyruvate are produced at the end of glycolysis... View Article
Pyruvate is produced by partial oxidation of glucose in the glycolysis process. Two molecules of pyruvate are produced at the end of glycolysis.... View Article
The enzyme RuBisCO catalyses the first step of the Calvin cycle, i.e. carbon fixation by RuBP to produce 3PGA. RuBisCO has an affinity for both... View Article
The respiratory fuel is a respiratory substrate, which is broken down to derive energy in cellular respiration. E.g. glucose is the most common... View Article
Dehydrogenase is an oxidoreductase enzyme, which takes part in redox reactions. They transfer two hydrogens from organic compounds to the... View Article
No, ATP is synthesised during oxidative phosphorylation in the electron transport system. CO2 is released in the Krebs cycle. Also Check:... View Article
Cytochrome c oxidase is one of the enzyme complexes of the electron transport system. It catalyses the last step of ETS. It contains cytochromes... View Article
Cytochrome c oxidase (complex IV) is the final complex of the electron transport system, which transfers electrons to oxygen forming H2O. Thus,... View Article
Malonate is structurally similar to succinate and acts as a competitive inhibitor for succinate dehydrogenase. Due to its close structural... View Article