Which Of The Following Processes Occurs When Oxygen Is Available?

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Which Of The Following Processes Occurs When Oxygen Is Available??

The correct answer is a.

Only glycolysis is the process that can occur in an oxygen-free (anaerobic) environment.

Which process takes place if oxygen is available?

aerobic respiration

Cellular respiration that proceeds in the presence of oxygen is called aerobic respiration.

What type of processes require oxygen?

Aerobic Metabolism

Any metabolic process that requires oxygen to occur is referred to as aerobic. Humans most other multicellular organisms and some microorganisms require oxygen for the efficient capture of the chemical energy from food and its transformation into the cellular energy form known as ATP.

Which of the following processes can occur when oxygen is not available?

When oxygen is not present and cellular respiration cannot take place a special anaerobic respiration called fermentation occurs. Fermentation starts with glycolysis to capture some of the energy stored in glucose into ATP.

Which stage is oxygen used in cellular respiration?

Stages of Cellular Respiration

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Glycolysis occurs in the cytosol of the cell and does not require oxygen whereas the Krebs cycle and electron transport occur in the mitochondria and do require oxygen.

What role does oxygen play in the process of aerobic metabolism?

What role does oxygen play in the process of aerobic metabolism? Oxygen is used in the final step of cellular respiration as the final electron acceptor and is used to create water. Without it only glycolysis can occur. Describe the by-products of energy production from ATP-PCr glycolysis and oxidation.

Which of the following processes requires oxygen aerobic )?

Cellular respiration requires oxygen and a food molecule such as glucose and it gives off carbon dioxide water and energy. Pathways of cellular respiration that require oxygen are said to be aerobic. The Krebs cycle and electron transport chain are both aerobic processes.

Which process requires oxygen in aerobic cell respiration?

Glycolysis can take place without oxygen in a process called fermentation. The other three stages of cellular respiration—pyruvate oxidation the citric acid cycle and oxidative phosphorylation—require oxygen in order to occur.

Which processes require oxygen are aerobic in aerobic organisms?

The cells of most living things make ATP from glucose in the process of cellular respiration. This process occurs in three stages: glycolysis the Krebs cycle and electron transport. The latter two stages require oxygen making cellular respiration an aerobic process.

When oxygen is not present what pathway occurs?

When Oxygen is not available the cell is forced to produce energy (=ATP) through ANAEROBIC processes that produce much less energy (about 15 times less) than AEROBIC processes. Oxygen is essential for the functioning of the electron transport chain.

What process will follow glycolysis if oxygen is not available?

When oxygen is not present pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue.

What would occur if oxygen became unavailable to the cell?

During the process of cellular respiration what is the total number of ATP produced per glucose molecule? What would be the result if oxygen became unavailable to the cell? A. Glycolysis would stop.

How does oxygen help in the process of cellular respiration?

Oxygen is used as the end electron acceptor for the electron transport chain in cellular respiration. It allows electrons to be transferred through the electron transport chain in order to create an electrochemical gradient for hydrogen to create ATP.

Where is oxygen used in respiration?

In cellular respiration oxygen is used in the cells to produce energy. During this process cells in our body use oxygen to produce ATP- the energy currency of the cell from glucose.

Which process of cellular respiration is oxygen most important for and directly involved in?

The oxygen consumed during cellular respiration is involved directly in accepting electrons at the end of the electron transport chain.

How is oxygen used in metabolic processes?

Aerobic Metabolism

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The aerobic metabolic system functions using the Krebs Cycle a complex series of chemical reactions that use oxygen to convert nutrients (carbohydrates fats and protein) to carbon dioxide and adenosine triphosphate (ATP) an energy-rich compound.

What is oxygen metabolism?

A chemical process in which oxygen is used to make energy from carbohydrates (sugars). Also called aerobic metabolism aerobic respiration and cell respiration.

How does oxygen function in metabolism?

Oxygen is used by all cells to convert food to useful energy. … Oxygen supply temporarily reduces in muscles during intense exercise and under such conditions the cells adapt their metabolism to low oxygen levels. Proper growth of the foetus and placenta depends on the ability of the cells to sense oxygen.

Which of the following processes directly requires oxygen o2?

Explanation: The electron transport system is the only metabolic process listed that directly requires molecular oxygen. Oxygen is the final electron acceptor (it is one of the most electronegative atoms in our bodies) in the electron transport chain.

What happens to oxygen in aerobic cell respiration quizlet?

What happens to oxygen during aerobic cell respiration? Oxygen is reduced by accepting electrons at the end of the electron transport chain.

Does anaerobic respiration require oxygen?

Most organisms cannot respire without oxygen but some organisms and tissues can continue to respire if the oxygen runs out. In conditions of low or no oxygen the process of anaerobic respiration occurs.

Anaerobic respiration.
Aerobic respiration Anaerobic respiration
Oxygen Present Absent or in short supply.

What are the anaerobic processes?

A (part of a) process that occurs in the absence of free oxygen. Examples of anaerobic processes are glycolysis and fermentation.

What process occurs during anaerobic respiration?

Answer: During anaerobic cellular respiration glucose is broken down without oxygen. The chemical reaction transfers glucose energy to the cell. In fermentation instead of carbon dioxide and water lactic acid is produced which can lead to painful muscle cramps.

Which process uses oxygen for energy?

cellular respiration

Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.

What is the name of respiration that occurs in the absence of oxygen?

Anaerobic respiration

Anaerobic respiration does not need oxygen (unlike aerobic respiration). It is the release of a relatively small amount of energy in cells by the breakdown of food substances in the absence of oxygen.

What happens if oxygen is not present?

Without oxygen there would not any fire and the combustion process in our vehicles would stop. Every mode of transport except electric would fail instantly. Planes flying high in the sky would fall on earth and millions of cars running on petrol and diesel would stop on the roads.

What is the end product of the respiration that occurs with oxygen?

End products of respiration are carbon dioxide water and energy in the form of ATP.

What step occurs when oxygen is available after glycolysis?

In the presence of oxygen the next stage after glycolysis is oxidative phosphorylation which feeds pyruvate to the Krebs Cycle and feeds the hydrogen released from glycolysis to the electron transport chain to produce more ATP (up to 38 molecules of ATP are produced in this process).

Which of the following is a product of glycolysis when oxygen is available?

In the presence of oxygen as you’ll soon see the final product of glycolysis is 36 to 38 molecules of ATP with water and carbon dioxide lost to the environment in the three cellular respiration steps subsequent to glycolysis.

What happens when glycolysis has oxygen?

If oxygen is present pyruvate from glycolysis is sent to the mitochondria. The pyruvate is transported across the two mitochondrial membranes to the space inside which is called the mitochondrial matrix. There it is converted to many different carbohydrates by a series of enzymes.

How do organisms generate energy when oxygen is not available?

How do organisms generate energy when oxygen is not available? In the absence of oxygen fermentation releases energy from food molecules by producing ATP. What are the two benefits of glycolysis? In just a few seconds all of the cell’s available NAD+ molecules are filled up with electrons.

Which of the following is most likely to happen if oxygen is not able to enter cells?

Answer: If there were no oxygen present in the mitochondrion the electrons could not be removed from the system and the entire electron transport chain would back up and stop. The mitochondria would be unable to generate new ATP in this way and the cell would ultimately die from lack of energy.

Is used to create energy when oxygen is available?

Aerobic cellular respiration is the process by which cells use oxygen to help them convert glucose into energy. This type of respiration occurs in three steps: glycolysis the Krebs cycle and electron transport phosphorylation.

What is the role of oxygen in respiration quizlet?

What is the role of oxygen in cellular respiration? Oxygen accepts high-energy electrons after they are stripped from glucose. Cellular respiration accomplishes two major processes: (1) it breaks glucose down into smaller molecules and (2) it harvests the chemical energy released and stores it in ATP molecules.

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Which of the following process makes direct use of oxygen ?

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