Select the statement(s) that accurately supports how photosynthesis and cellular respiration obey the laws of conservation of mass and energy.
Light energy from the sun is stored in the chemical bonds of glucose during photosynthesis.
Photosynthesis uses water as a reactant, and it is lost as waste.
There are six atoms of carbon in the reactants and the products of cellular respiration.
Chemical energy is transformed into ATP energy and thermal energy during cellular respiration.
Glucose is burned and destroyed to make energy in plants.
The accurate statements that support how photosynthesis and cellular respiration obey the laws of conservation of mass and energy are:
1. Light energy from the sun is stored in the chemical bonds of glucose during photosynthesis.
– This statement illustrates the conversion of light energy into chemical energy, which is a key aspect of the conservation of energy.
2. There are six atoms of carbon in the reactants and the products of cellular respiration.
– This reflects the conservation of mass, as the number of carbon atoms remains constant through the processes of photosynthesis and cellular respiration.
3. Chemical energy is transformed into ATP energy and thermal energy during cellular respiration.
– This demonstrates the transformation of energy forms, aligning with the principle of conservation of energy.
The other statements either misrepresent the processes or do not align with the conservation principles. For example, stating that “glucose is burned and destroyed” implies loss without acknowledging energy transformation, which does not meet conservation criteria.
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