LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Released all at once
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Released entirely as body heat into the environment.
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Released slowly and temporarily stored in ATP molecules
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None of the above
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Detailed explanation-1: -2) Breaking down the food molecules releases the energy that was holding them together, and that released energy is temporarily stored by the cell for the re-building process.
Detailed explanation-2: -When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).
Detailed explanation-3: -Cells run on chemical energy – specifically, the small amount temporarily stored in ATP molecules. Cellular respiration transfers chemical energy from a fuel molecule – glucose – to many usable molecules of ATP.
Detailed explanation-4: -One objective of the degradation of foodstuffs is to convert the energy contained in chemical bonds into the energy-rich compound adenosine triphosphate (ATP), which captures the chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.