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Energy in a Cell All living things need ______________________ (a characteristic of life) Cells need energy for: Active transport Cell division Movement Production of proteins And lots more! Energy cannot be CREATED or DESTROYED, it can only be _____________________ from one form to another Adenosine Triphosphate (ATP) ATP is the ______________________ that cells use for short-term energy storage The energy is stored in the ____________________ bonds of the molecule Adenosine bond bond bond Forming and Breaking Down ATP To ______________ the third phosphate group (by dehydration synthesis) you have to _____________ ________ a lot of energy to make that bond When ATP is broken apart by a hydrolysis reaction (or hydrolyzed), the ___________ between the second and third phosphate group is broken and energy is ________________________________ Energy in a Cell It’s a Cycle Cells ______________ energy by adding a phosphate group to ADP ( Dehydration synthesis reaction ) ADP + P + energy in Cells release energy by breaking the bonds of ATP ATP ATP ( Hydrolysis reaction ) ADP + P + energy out Crash Course Video - ATP and Respiration https://www.youtube.com/watch?v=00jbG_cfGuQ Or use the QR code: