Question

Which scenario best represents the conservation of matter and energy as food molecules react with oxygen?(1 point)
Responses

Energy from food is lost as heat, and matter is not transformed or rearranged.
Energy from food is lost as heat, and matter is not transformed or rearranged.

Food molecules and oxygen are rearranged and the process releases energy.
Food molecules and oxygen are rearranged and the process releases energy.

Food molecules disappear during the reaction and release energy.
Food molecules disappear during the reaction and release energy.

Oxygen is transformed into energy, and food molecules are transformed into new matter.
Oxygen is transformed into energy, and food molecules are transformed into new matter.

Answer 1

"Food molecules and oxygen are rearranged and the process releases energy."

Explanation: In cellular respiration atoms in the food and O2 are conserved but rearranged into CO2 and H2O, and chemical energy is released (as ATP and heat).