cellular respiration and digestion

Question 1

what is used chemical reactions occurs when glucose is burned

Answer 1

High temperature (fire) needed to overcome the activation energy.

Life uses many enzymes to chunk the process and lower the activation energy at each step. Some of the enzymes also use the chemical energy in glucose to regenerate ATP.

We can burn glucose in air to
produce carbon dioxide and water

C6H12O6(s)(glucose) + 6O2(g) (oxygen) → 6CO2(g)(carbon dioxide) + 6H2O(g).(Water)