Carbon dioxide in photosynthesis

These are the things that plants need for photosynthesis:

These are the things that plants make by photosynthesis:

Marine scientists were stunned to find complex ecosystems based on chemosynthesis flourishing around deep-sea hydrothermal vents. This discovery also caught the attention of space scientists, giving them renewed hope that they might find life elsewhere in the solar system. Explain why chemosynthesis may be more likely to support life on distant worlds than photosynthesis.

carbon dioxide + water (+ light energy) → glucose + oxygen

You will reconstruct a hydrothermal vent fauna food web on the diagram below. Click on the name of each animal to bring up its photograph and description. Then drag the name to the appropriate web layer. Once you have filled in all the spots in the food web, click on the “Show Food Web” button to see how these animals interact.

Although photosynthesis is widespread on Earth, it has fairly stringent requirements. Levels of carbon dioxide, water, and sunlight must be just right, and the temperature can’t be too hot or too cold. Planets closer to the sun than Earth may be too hot, dry, or bright for photosynthesis, while those farther away appear to be too dark and cold. Chemosynthesis is more flexible than photosynthesis. On Earth alone it occurs under a wide temperature range and utilizes a number of different chemicals, and it is unaffected by light intensity. Because chemosynthetic organisms can function in such harsh and hostile habitats on Earth, it seems possible that chemosynthesis may also be occurring under the difficult conditions found on other worlds.


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Other scientists are studying chemosynthetic organisms and communities to find clues in the search for extraterrestrial life. They speculate that chemical reactions could also support life on poorly lit, but geologically active planets and moons, such as Europa.

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Before we look at food chains we will go over the way green plants capture energy from the Sun to make food. This is the start of all the food chains we will look at.

Nicole Dubilier, Claudia Bergin & Christian Lott

Deep-sea chemosynthetic bacteria are attracting the attention of a wide range of scientists interested in their commercial potential. Biochemists intrigued by the ability of these tiny, delicate looking creatures to turn toxic chemicals into harmless compounds, hope to use such bacteria to clean up hazardous waste. Chemists seek to isolate the enzymes that allow chemosynthetic microbes to function under extremely high temperatures and put them to industrial use.

John H. Werren, Laura Baldo & Michael E. Clark

Animals eat food to get their energy. But green plants don't. Instead they make their own food, glucose, in a process called photosynthesis. We say that plants can photosynthesise.

Occur mostly in Bactera, as well as the cytoplasm.

Chemosynthetic communities are also found in marine settings other than hydrothermal vents. At so-called cold-seeps, where tectonic activity squeezes mineral water out of the ground and around sea bottom petroleum deposits, methane, ammonia, and hydrogen sulfide are released. Bacteria use these compounds to make organic molecules, which support a web of symbionts, carnivores, and scavengers.

How does chemosynthesis occur? - Updated - Quora

The oxygen produced is released into the air from the leaves. The glucose produced can be turned into other substances, such as starch, which is used as a store of energy. This energy can be released by respiration.