How Cells Obtain Energy Introduction and ATP An organism uses its entire energy budget at the __________________ level. An example of this is the fact that nearly a half of a cells energy output is spent on ____________ ______________. Cell __________________ also require energy. The kind of energy cells use is __________________ energy. The source of this energy is found in the molecule ______. Energy is released by ___________ the bond releasing the end ___________. What is left is __________. ADP can be __________ to ATP using the energy from the ______________ we eat. This recharging process takes place in the mitochondria of our cells. This extraction of energy from food and synthesis of ATP is called Cellular Respiration. Mitochondria and Cellular Respiration (making ATP) All nucleated cells (cells with a nucleus—eukaryotes) contain __________________ the site where _____is produced. Oxygen makes the process of ATP production more efficient. Without oxygen the cell can make only ____ ATP molecules. With oxygen the cell can make _____ molecules of ATP from every sugar molecule. 1. 2. 3. 4. ___________ IN Burn _______________ Make _________ _________ OUT Photosynthesis Photosynthesis it the way plants make their fuel molecules to feed their _________________. The chloroplast contains stacks of hollow disks called thylakoids. These are covered by a carpet of __________________ molecules where ______________ energy is converted into _______________ energy. Photosynthesis Summarized: 1. Light reactions: ______ is made using energy absorbed from the sun. 2. Light-independent reactions: ____ is coupled with other carbon chains using energy from ATP to make ____________ The cells 2 energy producing organelles _________________ & _________________ feed on the waste products of each other. ____ given off by mitochondria is what chloroplasts need to build ______________. The ________________ released by chloroplast during the light reactions is exactly what the mitochondria need to make it possible for ATP synthase to add the 3 phosphate to _______ creating ________ which is the universal energy carrier.