Explain the difference between substrate-level phosphorylation and oxidative phosphorylation? How many ATPs (net) are made by...

Explain the difference between substrate-level phosphorylation and oxidative phosphorylation? How many ATPs (net) are made by substrate-level phosphorylation vs oxidative phosphorylation in aerobic respiration? What role does chemiosmosis play?

Expert Solution

Oxidative phosphorylation Occurs inside mitochondria during respiration. whereas substrate-level phosphorylation Occurs inside the chloroplast during photosynthesis.
In oxidative phosphorylation ATP molecules produced are released into the cytoplasm and this energy molecules are used to carry out various metabolic reactions of the cell. whereas in substrate-level phosphorylation the ATP molecules produced is used to fix CO2 to carbohydrates in dark reaction
In substrate-level phosphorylation Pigment systems (PSI and PSII) are involved but in oxidative phosphorylation no pigments are involved.
In oxidative phosphorylation ATP is produced from ADP and inorganic phosphate by utilizing energy released during electron transport. in substrate-level phosphorylation sunlight is the external energy source for photophosphorylation.
oxidative phosphorylation use chemiosmosis to produce ATP from mitochondria

gladiator answered 2 years ago

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