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Explain why photosynthesis could have occurred in earths early atmosphere that did not contain oxygen and how it eventually affected the evolution of other organisms?
Wiki User
∙ 12y ago
The world would be very different if green plants had not evolved because the world is based on green plants. They provide food for almost all organisms: plants, animals, and microorganisms. They release oxygen into the atmosphere. They provide people with products including building materials, medicines, fuels, and fibers. They form fossil fuels, which are used by people all over the world. None of this would exist without green plants. The world would be much less colorful and diverse as well, because we would not have the great variety of plants, including trees and flowers, we have now
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoPhotosynthesis doesn't require oxygen, it produces it from carbon dioxide. Organisms that were successful producing energy through photosynthesis subsequently produced lots of oxygen. Initially oxygen, which is highly reactive,
oxidized photosynthetic organism unless they had protective barriers or utilized
oxygen in the process of respiration. Organisms that could use both photosynthesis
and respiration (like the euglena) were next...and subsequently organisms that live by consumption and respiration only. The beginnings of the food chain.
Wiki User
∙ 13y agoBecause of the burning of fuels and gases from factories which get into the air.
Wiki User
∙ 10y agolife would be different because we would not have enough oxeygen so the earths population might die out because there is bearly any air to breath.
Wiki User
∙ 9y agoIt will remain as reductive atmosphere. Ther will be only gases like NH3, H2 , H2S. H2O. There would be no life
Wiki User
∙ 11y agoThey won't have oxgen
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When organisms began using photosynthesis what gas was added to the atmosphere as a result?
Oxygen is one of the products of photosynthesis and is the gas that rose in abundance in the atmosphere due to the process of photosynthesis.
Does oxygen can enter the atmosphere during cellular respiration or photosynthesis?
Oxygen can enter the atmosphere during celluar respiration, because if it enters photosynthesis, how about the other organisms?
Which event contributed most directly to the evidence of aerobic organism?
The development of photosynthesis in primitive organisms, specifically cyanobacteria, contributed most directly to the evidence of aerobic organisms. Photosynthesis evolved around 3 billion years ago, producing oxygen as a byproduct. This oxygen accumulation in the atmosphere eventually allowed for the development of aerobic organisms, which rely on oxygen for their metabolism.
How did early photosynthesis organisms change Earth's atmosphere?
Photosynthetic bacteria produced oxygen, and as they continued to colonize the earth they produced more oxygen. Eventually all the oxygen sinks became saturated, and this resulted in the Great Oxygenation Event (GOE). Aerobic organisms would late evolve and utilize the free oxygen.
What is generally accepted as the origin of living organisms?
Prebiotic chemical evolution gave rise to progressively more complex molecules and eventually to living organisms
What is the process when organisms add oxygen to the atmosphere called?
photosynthesis
When organisms began using photosynthesis what gas was added to the atmosphere as a result?
Oxygen is one of the products of photosynthesis and is the gas that rose in abundance in the atmosphere due to the process of photosynthesis.
How did oxygen become a part of earth's atmosphere and what did this increase in oxygen levels allow?
The majority of oxygen in the atmosphere come from photosynthesis. Aquatic Cyanobacteria (blue green algae) were the first known organisms to use photosynthesis, before there were land plants. The by product of photosynthesis is oxygen. This increase in oxygen eventually allowed organisms to use respiration as a method of energy production. Thus it allowed for land animals.
Does oxygen can enter the atmosphere during cellular respiration or photosynthesis?
Oxygen can enter the atmosphere during celluar respiration, because if it enters photosynthesis, how about the other organisms?
What organisms remove carbon from the atmosphere?
trees (something to do with photosynthesis's) - hope this has helped :-)
Which event contributed most directly to the evidence of aerobic organism?
The development of photosynthesis in primitive organisms, specifically cyanobacteria, contributed most directly to the evidence of aerobic organisms. Photosynthesis evolved around 3 billion years ago, producing oxygen as a byproduct. This oxygen accumulation in the atmosphere eventually allowed for the development of aerobic organisms, which rely on oxygen for their metabolism.
How did the evolution of photosynthetic organisms help protect life from the sun's untraviolet radiation?
Because of photosynthesis, the partial pressure of O2 in the atmosphere increased. When ultraviolet radiation hits O2, it produces O3, which is an effective blocker of ultraviolet radiation.
How did early photosynthesis organisms change Earth's atmosphere?
Photosynthetic bacteria produced oxygen, and as they continued to colonize the earth they produced more oxygen. Eventually all the oxygen sinks became saturated, and this resulted in the Great Oxygenation Event (GOE). Aerobic organisms would late evolve and utilize the free oxygen.
Photosyntheic organisms may counter the greenhouse effect by?
By removing carbon dioxide (CO2) from the atmosphere through photosynthesis.
What is generally accepted as the origin of living organisms?
Prebiotic chemical evolution gave rise to progressively more complex molecules and eventually to living organisms
How have green plants and other organisms changed the composition of the Earths atmosphere?
Hugely. Before the evolution of the first organisms capable of photosynthesis around 3 billion years ago, the atmosphere of the early earth contained almost no Oxygen. By the conversion of Carbon Dioxide and Water into organic compounds and Oxygen through photosynthesis, cyanobacteria, and later algae and plants, have raised Oxygen levels to around 21% of the atmosphere today. Without this high level of Oxygen, the huge diversity of multi-cellular life depending on Oxygen for aerobic respiration would not exist.
Which of these was the first source of oxygen in our atmosphere?
They were the oldest organisms called Stromatolites which did not need oxygen themselves but produced it by photosynthesis.
