When cells use oxygen to release energy from sugar whT do they produce?

Answer 1

This is a very general question, but I'll give it an attempt. Glucose is oxidized via glycolysis to produce reduced coenzymes (2 NADH) and ATP. The product of glycolysis (pyruvate) then enters the citric acid cycle and is further oxidized to produce more reduced coenzymes (3 NADH and 1FADH2) and GTP (a high energy phosphate equivalent to ATP). The reduced coenzymes (NADH, FADH2) enter the electron transport chain and then are oxidized to release electrons. The electrons traverse the electron transport chain via several electron transport molecules and ultimately reduce oxygen to form metabolic water.

Answer 2

Glucose--but the wording of the question is misleading--the sugar itself does not combine with oxygen. Rather, as glucose is broken down into smaller compounds, electrons ("reducing equivalents") are released which eventually pass down what amounts to a stepwise gradient of energy, called the electron transport chain (ETC)--as they pass along this gradient, some of that energy is dissipated as heat and thus lost, but another bit of it is saved in a chemical form (so-called ATP) that is usable to the cell. At the end of the chain, the electrons themselves combine with oxygen to produce water. The other major product of this whole process is carbon dioxide, released at several points prior to the electrons entering the ETC.

Answer 3

My Science textbook says "Your cells use oxygen to break down sugar into carbon dioxide and water. When your cells break sugar down, they release energy from the sugar."

Does that answer your question?

Answer 4

The process in which cells use oxygen to release energy stored in glucose is cellular respiration.

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Metabolism, specifically catabolism.

Answer 5

Cellular respiration.

Answer 6

carbon dioxide and water