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Cornelis Bernardus van Niel, a Dutch-American microbiologist, was the first scientist to demonstrate that photosynthesis is a reaction in which hydrogen from an oxidizable compound reduces carbon dioxide to cellular materials. This discovery predicted that water is the hydrogen donor in green plant photosynthesis and is oxidized to O2.
This prediction was experimentally demonstrated by Robert Hill, a British plant biochemist who proved that oxygen is evolved during the light requiring steps of photosynthesis.
This was development of an understanding of the process of photosynthesis. The fact that plants release oxygen was known much earlier, without an understanding of why.
Joseph Priestley, the discoverer of oxygen, demonstrated that plants restore a vital quality to air, and we know know that quality to be oxygen. And in 1796, Jean Senebier, a Swiss pastor, botanist, and naturalist, demonstrated that green plants consume carbon dioxide and release oxygen under the influence of light
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∙ 11y ago
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∙ 12y agoJoseph Priestley, a chemist and minister, discovered (probably some time around 1774) that, when he isolated a volume of air under an inverted jar, and burned a candle in it, the candle would burn out very quickly, much before it ran out of wax. He further discovered that a mouse could similarly "injure" air. He then showed that the air that had been "injured" by the candle and the mouse could be restored by a plant.
In 1778, Jan Ingenhousz, court physician to the Austrian Empress, repeated Priestley's experiments. He discovered that it was the influence of sunlight on the plant that could cause it to revive a mouse in a matter of hours.
Indirectly, Preistly and Ingenhousz had found that plants produce oxygen - although they were not specifically showing it was the production of the molecular oxygen that was occurring. Priestly in particular was holding on to an archaic concept of "phlogiston" and thought of what we now know as oxygen as "dephlogisticated air."
The first to correctly describe that plants were taking in carbon dioxide and releasing oxygen was Jean Senebier, a Swiss pastor, botanist, and naturalist. In 1796 he demonstrated that green plants consume carbon dioxide and release oxygen under the influence of light. the rest of the mechanism of photosynthesis was described by others late.
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∙ 14y agoJan Ingenhousz
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∙ 13y agoJoseph Priestly
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∙ 13y agovan helmont
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∙ 10y agonone
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How were Priestly's and Ingenhousz's discoveries about photosynthesis related?
Priestley's and Ingenhousz's experiments showed that light is necessary for plants to produce oxygen.
What did Jan Ingenhousz show?
He proved that Priestley's experiment only worked when plants were exposed to sunlight. Concluding that Priestley had not performed his experiment without sunlight. Ingenhousz performed both in sun and dark presence.
Which scientist showed that light was needed for photosynthesis to happen?
In 1796 a Swiss botanist, Jean Senebier, showed that plants consume carbon dioxide and produce oxygen in the presence of light. His research was preceeded by the research of others who led the way to the final discovery.
How were Priestley's and Ingenhousz' discoveries about photosynthesis related?
Priestley's and Ingenhousz's experiments showed that light is necessary for plants to produce oxygen (right from the text book of "Prentice Hall Biology" Page 206 by Miller Levine).
In a second experiment mice were allowed to breathe oxygen gas O2 laced with radioactive oxygen in this experiment the radioactive oxygen atoms quickly showed up in?
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Who showed that plants produce oxygen when exposed to light?
Jan Ingenhousz
Ingenhousz showed that plants produce oxygen bubbles when exposed to?
Light
How were Priestly's and Ingenhousz's discoveries about photosynthesis related?
Priestley's and Ingenhousz's experiments showed that light is necessary for plants to produce oxygen.
What scientist showed plants need light to grow?
Someone
What did Jan ingenhousz?
Jan Ingenhousz was a Dutch scientist who discovered the process of photosynthesis. He showed that plants release oxygen in the presence of sunlight and carbon dioxide, and he also demonstrated that plants need sunlight to produce energy. Ingenhousz's work laid the foundation for our understanding of how plants convert sunlight into chemical energy.
How were priestly's and ingenhousz's discoveries about photosnythesis related?
Priestley discovered that plants release oxygen in sunlight, while Ingehnousz showed that plants require sunlight to produce oxygen. Together, their discoveries led to the understanding that sunlight is necessary for photosynthesis and that plants play a crucial role in maintaining oxygen levels in the atmosphere.
What was the name of the scientist who showed that combining wood and oxygen could create fire?
Antoine Lavoisier
What scientist showed that water consists of hydrogen an oxygen?
Henry Cavendish was the scientist that demonstrated that water is made up of both oxygen and hydrogen. Cavendish was born in the Kingdom of Sardinia in 1731.
What did Jan Ingenhousz show?
He proved that Priestley's experiment only worked when plants were exposed to sunlight. Concluding that Priestley had not performed his experiment without sunlight. Ingenhousz performed both in sun and dark presence.
Which scientist showed that light was needed for photosynthesis to happen?
In 1796 a Swiss botanist, Jean Senebier, showed that plants consume carbon dioxide and produce oxygen in the presence of light. His research was preceeded by the research of others who led the way to the final discovery.
Who performed an experiment that showed that plants produce a gas that allows a candle to burn?
Joseph Priestly
How were Priestley's and Ingenhousz' discoveries about photosynthesis related?
Priestley's and Ingenhousz's experiments showed that light is necessary for plants to produce oxygen (right from the text book of "Prentice Hall Biology" Page 206 by Miller Levine).
