How are the remaining ATP molecules produced?

1: Cellular respiration in a eukaryotic cell: Glycolysis on the left portion of this illustration can be seen to yield 2 ATP molecules, while the Electron Transport Chain portion at the upper right will yield the remaining 30-32 ATP molecules under the presence of oxygen.

How are ATP molecules made during cellular respiration?

During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.

Where does the original energy come from in cellular respiration?

Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP (adenosine triphosphate).

What process do cells use to create ATP energy if there is no oxygen available?

fermentation
Without oxygen, some human cells must use fermentation to produce ATP, and this process produces only two molecules of ATP per molecule of glucose. Although fermentation produces less ATP, it has the advantage of doing so very quickly.

What stage creates four ATP molecules but then gains overall only two?

glycolysis
Explanation: In glycolysis, the net gain of ATP molecules is 2. Two ATP per glucose molecule are required to initiate the process, then a total of four ATP are produced per molecule of glucose.

What are the two molecules produced by cellular respiration quizlet?

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water.

Is the ATP the energy from the cellular respiration?

Cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. Oxygen and glucose are both reactants of cellular respiration. When one molecule of glucose is broken down, it can be converted to a net total of 36 or 38 molecules of ATP.

Which of the following molecules is broken down in cellular respiration?

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.