What type of ATP requires oxygen?
Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell.
Does ATP production always require oxygen?
Aerobic respiration requires oxygen in order to generate energy ( ATP ). Aerobic metabolism is up to 15 times more efficient than anaerobic metabolism (which yields two molecules ATP per one molecule glucose).
Why is oxygen needed for ATP production?
Oxygen acts as a final electron acceptor that helps move electrons down a chain that results in adenosine triphosphate production. To summarize this process, the food we eat is metabolized in a way to release electrons and hydrogen ions used by the mitochondria to produce adenosine triphosphate.
How many ATP are produced when oxygen is present?
38 ATP molecules
With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules.
Why do we use 36 ATP instead of 38?
As a result, between 1 and 2 ATP are generated from these NADH. In eukaryotic cells, the theoretical maximum yield of ATP generated per glucose is 36 to 38, depending on how the 2 NADH generated in the cytoplasm during glycolysis enter the mitochondria and whether the resulting yield is 2 or 3 ATP per NADH.
How do cells generate ATP in the absence of oxygen?
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. Aerobic cellular respiration, in contrast, produces ATP more slowly.
What generates more ATP?
Explanation: The electron transport chain generates the most ATP out of all three major phases of cellular respiration. Glycolysis produces a net of 2 ATP per molecule of glucose. In the Krebs cycle, there is one GTP (which is an ATP equivalent) generate in the conversion of succinyl-CoA to succinate.
Which type of respiration is most efficient?
Aerobic cell respiration
Aerobic cell respiration is roughly 18 times more efficient than anaerobic cell respiration. Your cells require a lot of energy and are dependent on the high efficiency of aerobic respiration. They quickly die if deprived of oxygen.
What cell produces ATP?
mitochondria
Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria; in plant cells, the enzyme also is found in chloroplasts.
Can glycolysis produce ATP in the absence of oxygen?
Glycolysis Overview However, in some cells, most notably mature red blood cells, glycolysis is the only means of ATP production because of the lack of mitochondria. In the absence of oxygen, glycolysis is the only option that cells have for the production of ATP from glucose.
Does photosynthesis produce ATP?
The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
How much ATP is produced in the presence of oxygen?
In the presence of oxygen, 34-38 ATP are produced per glucose molecule. In the absence of oxygen, the net yield of ATP produced is 2 per glucose molecule. ATP is formed in the presence of oxygen in the process known as aerobic cellular respiration.
When does the mitochondria need to produce ATP?
The process of fermentation is when there is no oxygen in the cell and it needs NADH for the glycolysis to keep working. This is the next part of the production of ATP! In this process of The Krebs Cycle, it finally completes the breakdown of glucose, which was originally started by the process of Glycolysis.
How many ATP molecules does the glycolysis need?
For the glycolysis to work, it needs two ATP molecules and then in the end it generates four ATP molecules, so two it gains two more ATP molecules. It also produces two pyruvate molecules and two NADH, the pyruvate molecules are molecules that are rich in carbon and the NADH is a high energy molecule used to produce more ATP.
What makes ATP in the electron transport chain?
The Electron Transport Chain: ATP for Life in the Fast Lane. After passing through the ETC, low-energy electrons and low-energy hydrogen ions combine with oxygen to form water. Thus, oxygen’s role is to drive the entire set of ATP-producing reactions within the mitochondrion by accepting “spent” hydrogens.
https://www.youtube.com/watch?v=6sGNuamPfLs