A molecule made up of adenine, ribose sugar, and three phosphate groups, which stores and releases energy by breaking phosphate bonds for cellular activities, is called adenosine triphosphate (ATP).
Topics
Chemical Reactions and Equations
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The Human Eye and the Colourful World
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Electricity
Magnetic Effects of Electric Current
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Our Environment
Estimated time: 4 minutes
- Definition: ATP
- Key Points: ATP
Maharashtra State Board: Class 10
Definition: ATP
Maharashtra State Board: Class 10
Key Points: ATP
- ATP formation is called phosphorylation and occurs in three ways: photophosphorylation, substrate-level phosphorylation, and oxidative phosphorylation.
- Photophosphorylation occurs during photosynthesis, while the other two occur during respiration.
- Substrate-level phosphorylation involves direct transfer of a phosphate group to ADP and occurs in the cytoplasm and mitochondrial matrix.
- Oxidative phosphorylation uses energy from oxidation of NADH and FADH₂ and occurs in the inner mitochondrial membrane.
- ATP is hydrolysed to release energy whenever the cell needs it for metabolic activities.
