A closed terrarium is a closed ecosystem just on a much smaller scale. The
supply of carbon dioxide in the terrarium air is very small because of the
limited volume of air. Therefore, unless the terrarium contains animals
to provide carbon dioxide or microbes break down large amounts of organic
matter in the soil and release carbon dioxide, the plants in a sealed
terrarium cannot gain significant dry weight. They would basically refix
the same carbon dioxide over and over. The carbon dioxide the plants
release during cellular respiration would be refixed via photosynthesis,
then respired, refixed, respired, refixed, etc.
Most terrariums are not completely sealed so carbon dioxide can enter and
plants can gain dry matter via photosynthesis. The inventor of the
terrarium, Nathaniel Bagshaw Ward (1791-1868), supposedly had a "sealed
terrarium" that survived four years but it is questionable if it was
completely sealed because of the substantial plant growth he observed.
Another attempt at a closed terrarium on a larger scale was the big
Arizona greenhouse called Biosphere Two . It was
originally supposed to be a sealed terrarium for two years containing
several people, many animals and all sorts of plants. However, it got out
of balance, and they had to add more oxygen because the amount of
photosynthesis was less than required to supply adequate oxygen to all the
animals.
References:
Hershey, D.R. 1996. Doctor Ward's accidental terrarium. American Biology
Teacher. 58:276-281.
Cows release more carbon dioxide when they burp or release flatulence than a car does for a whole month....or something like that.
Carbon dioxide is excreted from the lungs.
The gas that is taken in by animals is oxygen. Animals absorb oxygen and exhale carbon dioxide. Plants take in carbon dioxide and let out oxygen.
The rate at which carbon dioxide enters the cell is determined by the concentration of carbon dioxide on each side of the membrane. Carbon dioxide crosses the plasma membrane by simple diffusion.
Carbon dioxide. One carbon for every two oxygen atoms means carbon dioxide. Plants take in water, carbon dioxide, and energy from the sun to produce glucose and oxygen during photosynthesis.
Carbon dioxide and sugar
Their is recycled air in the carbon dioxide and oxygen cycle and no recycled air in the carbon cycle.
In the carbon cycle, carbon dioxide (CO2) is recycled from the atmosphere through processes like photosynthesis and respiration. In the oxygen cycle, oxygen (O2) is recycled through processes like photosynthesis, respiration, and decomposition.
The two gases that are recycled by the process of photosynthesis and cellular respiration are oxygen and carbon dioxide. In photosynthesis, plants take in carbon dioxide and release oxygen, while during cellular respiration, organisms take in oxygen and release carbon dioxide.
Oxygen, Carbon Dioxide, water, and ADP/ATP are all recycled during photosynthesis and respiration. Energy is not recycled so there must be a continuous supply of energy to maintain the cycle.
Carbon dioxide - but the recycling aspect is decades away.
Carbon is recycled through the carbon cycle, a natural process that moves carbon between the atmosphere, oceans, soil, and living organisms. Plants absorb carbon dioxide from the air during photosynthesis and use it to build their tissues. When plants and animals die, their remains decompose and release carbon back into the atmosphere as carbon dioxide. This carbon can then be taken up again by plants, restarting the cycle.
Coal can not be recycled. Once it's burnt, it's just ash, carbon and carbon dioxide.
Into the atmosphere. Then it is basically recycled again through the CO2 cycle.
Into the atmosphere. Then it is basically recycled again through the CO2 cycle.
Yes, oxygen can be recycled. Oxygen is recycled every time by nature, the plants in take carbon dioxide that is released by animals and release oxygen.
Photosynthesis occurs in chloroplast of a plant cell using sunlight, carbon dioxide, and water to produce oxygen and glucose Respiration occurs in the mitochondrion of an animal cell using glucose and oxygen to produce ATP, carbon dioxide and water. Because each reaction has glucose, water, carbon dioxide, and oxygen as either reactants or products, they are essentially "recycled."