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Misconceptions
Energy |
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- • Energy comes from air, sleep, food, and exercise.
- • (While oxygen in the air and glucose from food are used in cellular respiration in which energy is transformed in the cell, students rarely have a mental model that includes this understanding.)
- • Sleep produces energy.
- • ( Sleep producing energy comes from the idea that when you are rested you feel like you have more “energy”.
- • The way sleep produces this feeling is not completely understood by scientists and is very complicated.
- • Initially many students believe that in order to have energy to live you need sleep.
- • While sleep plays an important part in the proper working of the human body, it is not actively involved in cellular respiration.
- • The idea that sleep provides energy is a persistent misconception that is best not dealt with at this level and within the time constraints of this curriculum. )
- • You need water for energy transformation.
- • (Water is actually produced as a by-product of cellular respiration.)
- • Light and/or heat from the sun is necessary for energy transformation in the human body.
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