Which process produces more ATP per glucose metabolized?

So, oxidative phosphorylation is the metabolic cycle that produces the most net ATP per glucose molecule.

What process produces the most 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.

Which pathway produces the most energy from a glucose molecule?

Most ATP from glucose is generated in the electron transport chain. It is the only part of cellular respiration that directly consumes oxygen; however, in some prokaryotes, this is an anaerobic pathway. In eukaryotes, this pathway takes place in the inner mitochondrial membrane.

Does fermentation produce ATP?

Fermentation does not involve an electron transport system, and no ATP is made by the fermentation process directly. Fermenters make very little ATP—only two ATP molecules per glucose molecule during glycolysis. … During lactic acid fermentation, pyruvate accepts electrons from NADH and is reduced to lactic acid.

How 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.

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How does glucose produce 32 ATP?

In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP. The process of glycolysis only produces two ATP, while all the rest are produced during the electron transport chain. … Thus, electrons are picked up on the inside of mitochondria by either NAD+ or FAD+.

Is glycolysis aerobic or anaerobic?

Glycolysis, as we have just described it, is an anaerobic process. None of its nine steps involve the use of oxygen. However, immediately upon finishing glycolysis, the cell must continue respiration in either an aerobic or anaerobic direction; this choice is made based on the circumstances of the particular cell.

Is glucose an electron donor?

In other words, oxygen is being used as the final electron acceptor. … This generates the most ATP for a cell, given the large amount of distance between the initial electron donor (glucose) and the final electron acceptor (oxygen), as well as the large number of electrons that glucose has to donate.

How many ATP does fermentation produce?

Fermentation happens in anaerobic conditions (i.e.,without oxygen). Fermentation begins with glycolysis which breaks down glucose into two pyruvate molecules and produces two ATP (net) and two NADH. Fermentation allows glucose to be continuously broken down to make ATP due to the recycling of NADH to NAD+.

How many ATP does fermentation cost?

Fermentation is less efficient at using the energy from glucose: only 2 ATP are produced per glucose, compared to the 38 ATP per glucose nominally produced by aerobic respiration.

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What are the 3 types of fermentation?

What Are the 3 Different Types of Fermentation?

  • Lactic acid fermentation. Yeast strains and bacteria convert starches or sugars into lactic acid, requiring no heat in preparation. …
  • Ethanol fermentation/alcohol fermentation. …
  • Acetic acid fermentation.

Does photosynthesis use ATP?

All organisms need energy. Life depends on the transfer of energy. ATP is an important source of energy for biological processes. … In photosynthesis energy is transferred to ATP in the light-dependent stage and the ATP is utilised during synthesis in the light-independent stage.

Do plants use ATP?

In addition to mitochondrial ATP synthesis, plants can also make ATP by a similar process during the light reactions of photosynthesis within their chloroplasts. … This is an especially vital source of ATP for plants because ATP is also needed for them to synthesize glucose in the first place.

How do plants produce ATP?

During photosynthesis a plant takes in water, carbon dioxide and light energy, and gives out glucose and oxygen. It takes light from the sun, carbon and oxygen atoms from the air and hydrogen from water to make energy molecules called ATP, which then build glucose molecules.

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