The two processes that take place during the oxygen cycle would be cellular respiration and photosynthesis. The oxygen cycle is also known as the carbon cycle.
There are three processes that take place in the water cycle:EvaporationCondensationTranspiration
H2O, which is the chemical formula for water, takes place in various natural processes such as the water cycle, which includes evaporation, condensation, and precipitation. It is also a key component in biological processes like photosynthesis and cellular respiration. Additionally, H2O is found in oceans, lakes, rivers, and other bodies of water on Earth.
For oxidation to proceed at body temperature, a catalyst must promote the reaction. In living systems, complex molecules, called enzymes, provide this function. The oxidation of pyruvic acid into CO2, water and energy is called the Krebs cycle. This cycle is also citric acid cycle because the cycle begins with the formation of citric acid. Citric acid is a carboxylic acid containing 3 COOH groups. Hence this cycle is also called as tricarboxylic acid cycle or TCA cycle. This cycle occurs only in the presence of oxygen. Hence it is an aerobic process. It takes place in the mitochondria of the cell..
The troposphere holds almost all of the water vapor in the atmosphere. This is the lowest layer of the Earth's atmosphere where weather events occur, and it is where most of the water cycle processes take place.
A carbon reservoir is a place where carbon is stored, such as the atmosphere, oceans, soil, and living organisms. These reservoirs play a crucial role in the carbon cycle by storing and releasing carbon through processes like photosynthesis, respiration, and decomposition, helping to regulate the amount of carbon in the Earth's systems.
The Krebs cycle begins after the processes of glycolysis and pyruvate oxidation have taken place in the presence of oxygen. Without oxygen, glycolysis does not go on to pyruvate oxidation and the Krebs cycle, but to fermentation.
There are three processes that take place in the water cycle:EvaporationCondensationTranspiration
Oxygen
one which takes place with oxygen
Burning
Anaerobic processes occur when there is no oxygen present, such as in anaerobic respiration or fermentation. These processes result in the production of energy without the need for oxygen.
TranspirationCondensationPrecipitation
Anaerobic processes occur in the absence of oxygen. These biological processes enable organisms to generate energy without using oxygen, often resulting in byproducts such as lactic acid or ethanol. Anaerobic respiration is commonly utilized by certain bacteria, yeast, and in muscle cells during intense exercise when oxygen supply is limited.
In the carbon dioxide-oxygen cycle, plants take in carbon dioxide during photosynthesis and release oxygen as a byproduct. Animals then consume this oxygen and release carbon dioxide as a waste product during respiration. This cycle maintains a balance of oxygen and carbon dioxide in the atmosphere essential for life on Earth.
Anaerobic processes occur in the absence of oxygen. This type of metabolism produces energy without the need for oxygen. Examples include fermentation in yeast and lactic acid production in muscles during intense exercise.
During the G1 phase of the cell cycle, the cell grows and carries out its normal functions. This is followed by the S phase, during which DNA synthesis and replication occur. Finally, the G2 phase takes place, where the cell prepares for mitosis.
Outside the Calvin cycle, photosynthesis occurs primarily in the thylakoid membranes of chloroplasts, where light-dependent reactions take place. These reactions capture sunlight and convert it into chemical energy in the form of ATP and NADPH while splitting water molecules to release oxygen. Additionally, cellular respiration occurs in mitochondria, where glucose produced during the Calvin cycle is broken down to generate ATP for cellular activities. Other metabolic processes, such as the synthesis of fatty acids and amino acids, also take place outside the Calvin cycle.