What is the name of the process by which trees absorb carbon dioxide from the atmosphere and release oxygen back out?

Answer 1

The process in trees (and other plants) which uses carbon dioxide and makes oxygen is called photosynthesis. In photosynthesis, plants use light energy to convert carbon dioxide and water into sugar (glucose) and oxygen. The carbon dioxide is obtained from the atmocphere and the oxygen is released into the atmosphere. The process of absorbing carbon dioxide and releasing oxygen is called gas exchange (or gaseous exchange). Molecules of carbon dioxide enter the plant, and molecules of oxygen leave the plant, by a process called diffusion.

Answer 2

"it is really plain and simple, and if this question is in an exam, just put photosynthesis and it will be right, so the process in the tree that produces carbon dioxide is called photosynthesis."

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Feedback : History : Options

I left the previous answer intact, since I have seen similar misunderstandings other places. Photosynthesis uses sunlight, carbon dioxide and water to produce oxygen and glucose, a sugar. A plant then uses that sugar and oxygen to perform cellular respiration, just like animals, and that is how they produce carbon dioxide.

Answer 3

Respiration is the process by which any cell combines sugar and/or starches with oxygen and gives off carbon dioxide and water with a release of energy. This takes place in all cells, including plants - with or without the presence of sunlight.

The opposite process in which the tree absorbs water and sunlight and carbon dioxide, and then exhales oxygen is called photosynthesis.

Answer 4

In animals and many eukaryotic organisms like yeast it is known as respiration. For fossil fuels the process is known as combustion, or oxidation/reduction.

Animal life does not appear to have altered CO2 levels much over the past 800,000 years, as records suggest carbon dioxide vacillated from 250 to 280 ppm. Plant life, however, can draw down atmospheric CO2. This happened during the Permian, 300 million years ago, as vast tracts of organic swamp vegetation sank and sequestered carbon. At the end of the cretaceous tiny marine calcareous coccolithophores again pulled gigatons of carbon from the atmosphere as they gradually sank in ocean deposits of chalk and limestone.

Fifty million years ago a freshwater fern, Azolla, again dropped global temperatures by sequestering gigatons of atmospheric carbon onto arctic sea floor over a brief hundred thousand year period.

Answer 5

photosynthesis

Answer 6

Photosynthesis.