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How does oxygen break down glucose?

How does oxygen break down glucose? Aerobic respiration

Glucose is oxidised to release its energy, which is then stored in ATP molecules. … Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide. The carbon dioxide is a waste product of aerobic respiration because cells do not need it.

What is the role of oxygen in the production of ATP?

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.

What type of respiration requires oxygen?

Aerobic respiration is a specific type of cellular respiration, in which oxygen (O2) is required to create ATP.

Where does oxygen used in cellular respiration end up?

Oxygen acts as a final electron acceptor in the electron transport chain, resulting in the formation of water.

Why do we break down glucose?

Most carbohydrates (sugars and starches) are converted into glucose before they are broken down in the cytosol to release energy. … If oxygen is present, then glucose can be broken all the way down into carbon dioxide and water. This process is called aerobic respiration because it requires air (oxygen).

Is oxygen necessary for the production of ATP in your cells?

Oxygen isn’t necessary for the production of all ATP in your cells, because it is only used in the last stage of cellular respiration.

Does mitochondria use oxygen to make ATP?

Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product. … Instead, the small amount of ATP they make in the absence of oxygen is accompanied by the production of lactic acid.

What is the relationship between ETC and oxygen?

Explanation: Oxygen acts as the terminal electron acceptor in the electron transport chain (ETC). This accounts for the reason as to why, when cells are starved of oxygen, the ETC « backs up » and the cell will divert to using anaerobic respiration, such as fermentation.

What is the presence and absence of oxygen?

The Presence of Oxygen

There are two types of cellular respiration (see Cellular Respiration concept): aerobic and anaerobic. One occurs in the presence of oxygen (aerobic), and one occurs in the absence of oxygen (anaerobic). Both begin with glycolysis – the splitting of glucose.

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

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.

Which type of respiration is most efficient?

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.

How much oxygen is used in cellular respiration?

Let’s read the chemical equation for cellular respiration. The equation shows that cells use six molecules of oxygen (6O2) to break down one molecule of glucose (C6H12O6). The arrow shows that when the sugar is broken down something else is produced. Energy, water, and carbon dioxide are produced.

What happens to oxygen after cellular respiration?

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.

What happens to glucose in the absence of oxygen?

Glucose –> carbon dioxide + water + energy. in the absence of oxygen in which glucose breaks into alcohol and carbon dioxide with release of energy.

What is the breaking down of glucose called?

Glycolysis is a series of reactions that extract energy from glucose by splitting it into two three-carbon molecules called pyruvates. … In organisms that perform cellular respiration, glycolysis is the first stage of this process.

What organ helps maintain glucose levels?

The pancreas has key roles in maintaining normal blood glucose levels by producing and releasing insulin and glucagon.

Which type of ATP synthesis does not require oxygen?

Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.

How does the body make ATP without 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 is the products of aerobic respiration?

The reaction is called aerobic respiration, and it produces energy which transfers to the cells. Aerobic respiration makes two waste products:carbon dioxide and water. Animals remove carbon dioxide from their bodies when they breathe out. In daytime, plants use some of this carbon dioxide for photosynthesis.

Can mitochondria make oxygen?

Mitochondria are an important source of ROS (reactive oxygen species) within most mammalian cells [1–8]. … The focus of the present review is the production of the proximal mitochondrial ROS, O2, in the mitochondrial matrix by the core metabolic machinery present in the mitochondrial inner membrane and matrix.

Where does the mitochondria get oxygen?

This membrane surrounds the mitochondrial matrix, where the citric acid cycle produces the electrons that travel from one protein complex to the next in the inner membrane. At the end of this electron transport chain, the final electron acceptor is oxygen, and this ultimately forms water (H20).

What does mitochondria do with oxygen?

Mitochondria: the energy converters

Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria.

What is the relationship between the ETC and oxygen quizlet?

What is the relationship between the ETC and oxygen? The relationship between the two is that ETC allows cytochrome to pass into it’s final acceptor oxygen.

What is synthesis of ATP?

ATP synthesis involves the transfer of electrons from the intermembrane space, through the inner membrane, back to the matrix. … The combination of the two components provides sufficient energy for ATP to be made by the multienzyme Complex V of the mitochondrion, more generally known as ATP synthase.

Could the loss of cellular respiration cause death?

Adenosine triphosphate (ATP) produced by cellular respiration must occur constantly. This is because ATP provides energy for cells to carry out their functions. … This causes the transport chain to stop, which causes the production of ATP to stop, and cells cannot carry out their functions and they die.



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