CELL RESPIRATION
ATP ADENOSINE TRIPHOSPHATE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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From broken down food.
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From the sun.
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From water.
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From running.
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Detailed explanation-1: -When the cell has extra energy (gained from breaking down food that has been consumed or, in the case of plants, made via photosynthesis), it stores that energy by reattaching a free phosphate molecule to ADP, turning it back into ATP. The ATP molecule is just like a rechargeable battery.
Detailed explanation-2: -As the electrons are passed through the chain hydrogen ions are pumped into the intermembrane space. This creates a hydrogen ion gradient, a source of stored energy. The enzyme ATP synthase can use the energy stored in this gradient to add a phosphate group to ADP to create ATP for the cell.
Detailed explanation-3: -The phosphate tail of ATP is the actual power source which the cell taps. Available energy is contained in the bonds between the phosphates and is released when they are broken, which occurs through the addition of a water molecule (a process called hydrolysis).
Detailed explanation-4: -This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a third phosphate group, becoming a molecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP.
Detailed explanation-5: -Energy is released by hydrolysis of the third phosphate group. After this third phosphate group is released, the resulting ADP (adenosine diphosphate) can absorb energy and regain the group, thus regenerating an ATP molecule; this allows ATP to store energy like a rechargeable battery.