The Cell and Energy The Inner Life of a Cell.

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Presentation transcript:

The Cell and Energy The Inner Life of a Cell

ATP – adenosine triphosphate

ATP – adenosine triphosphate Made up of: Adenine: a nucleic acid Ribose: a 5-carbon sugar Three phosphate molecules

ATP – adenosine triphosphate Like money – pays for work High energy bonds connect the phosphate groups Kinases are enzymes that de-phosphorylate ATP

ATP – adenosine triphosphate De-phosphorylation ATP → ADP + Pi → AMP + Pi Energy released with bonds breaking ADP has less energy than ATP (80%) AMP has less energy than ADP (20%) Phosphorylation AMP + Pi → ADP + Pi → ATP

ATP – adenosine triphosphate ATP needs to be continually replaced

Two other names to recognize… NAD (nicotinamide adenine dinucleotide) is an important enzyme for cellular respiration NADP is an important enzyme in photosynthesis

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