Question

During respiration,oxygen combines with ____________.
a) carbon dioxide to produce glucose
b) saliva to produce glucose
c) glucose to produce heat and light
d) glucose to produce energy, carbon dioxide and water vapour
Answer this question ​

Answer 1

Answer:

Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Answer 2

Answer:

d) glucose to produce energy, carbon dioxide and water vapour

Explanation:

During respiration glucose combines with oxygen and forms carbon dioxide and water along with release of energy.