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It is produced from water. Water is broken down by photolysis to get electrons.

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The oxygen atoms in O2 produced during photosynthesis come from water molecules (H2O) that are split during the light-dependent reactions in the chloroplasts of plant cells. This process, known as photolysis, releases oxygen as a byproduct.

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Q: Where do the oxigens atoms in the O2 produced during photosynthesis come from?
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During photosynthesis water molecules are split into atoms of oxygen and what?

Since water is comprised of two hydrogen atoms and one oxygen atom, when it is split into atoms by plants during photosynthesis the only other atoms other than oxygen that are produced are hydrogen atoms.


What part of the water molecule is used during photosynthesis?

The hydrogen atoms in the water molecule are used during photosynthesis. Water molecules are split into oxygen, protons, and electrons during the light-dependent reactions in photosynthesis.


Through photosynthesis a simple sugar is produced. Where do the carbon atoms come from to produce this sugar molecule?

carbon dioxide


What is the immediate source for hydrogen atoms for the production of sugar during photosynthesis?

The immediate source of hydrogen atoms for the production of sugar during photosynthesis is water. Water molecules are split into oxygen, protons, and electrons, and the electrons and protons are used to reduce carbon dioxide to produce sugar while releasing oxygen as a byproduct.


Oxygen atoms in the oxygen gas produced by photosynthesis comes from what?

The oxygen atoms in the oxygen gas produced by photosynthesis come from water molecules that are split during the light-dependent reactions. The oxygen molecules released are a byproduct of this process.


What are sugars produced from in the third stage of photosynthesis?

Carbon Dioxide


Oxygen is given off as a by product?

During the process of photosynthesis, plants release oxygen as a byproduct. This oxygen is produced when water is split into oxygen and hydrogen atoms during the light-dependent reactions of photosynthesis. The oxygen released by plants is essential for all living organisms that require oxygen for respiration.


Are atoms used in photosynthesis and cellular respiration recycled?

Yes, atoms involved in photosynthesis and cellular respiration are continuously recycled within living organisms. During photosynthesis, carbon, hydrogen, and oxygen atoms are used to make glucose from carbon dioxide and water. In cellular respiration, glucose is broken down to release energy, carbon dioxide, and water, recycling the atoms back into the environment.


Where do carbon hydrogen and oxygen atoms come from to form glucose during photosynthesis?

They come from CO2 and Water. They are the raw materials


What is the ultimate source of energy in the sugars produced by photosynthesis?

The ultimate source of energy in the sugars produced by photosynthesis is sunlight. During photosynthesis, plants capture sunlight and convert it into chemical energy stored in the form of sugars like glucose.


What is the source of O atoms that end up in glucose?

The oxygen atoms in glucose primarily come from water molecules during the process of photosynthesis. During photosynthesis, plants take in water from the soil, split the water molecules, and release oxygen as a byproduct. The oxygen released is used in glucose synthesis.


How is mass conserved during the process of photosynthesis?

During photosynthesis, plants use carbon dioxide from the air and water from the soil to produce glucose and oxygen. The mass of the carbon atoms from the carbon dioxide that gets converted into glucose is conserved. Therefore, overall mass is conserved during photosynthesis by following the law of conservation of mass.