Cycles that Occur in Nature: Biogechemical Cycles in Living Ecosystems

Cycles that occur in nature. Photo: Pixabay
Nature The universe has various kinds of cycles that are beneficial for the lives of its inhabitants. In an ecosystem, the exchange of organic and inorganic cycles has been arranged to form a cycle called biogechemistry.
The biogechemical cycle is the one that flows from abiotic to biotic components, then back to abiotic components. Simply put, the biogechemical cycle is required by living beings in an ecosystem.

Quoting in the book Environmental Biology published by Muhammadiyah University Press, the purpose of the biogechemical cycle is to realize the stability of nature, especially on earth. Meanwhile, the function of the biogechemical cycle is to maintain the circulation of chemical elements in nature that are needed by organisms for their survival.

The biogechemical cycle consists of several cycles that move according to their roles. Check out the explanation below to find out the cycles that occur in nature in terms of the biogechemical cycle, quoted from the book Biology SMA/MA Class X Diknas by Gunawan Susilowarno, et al.

An example of the water cycle as one of the cycles that occur in nature. Photo: Pixabay

Water has an important role in the life of living things on earth because it has good benefits for the body. Water is also the most abundant component of the lithosphere, atmosphere, and in the body of organisms.

Cycle Water occurs through the atmosphere, oceans, land, to organisms. The process can include evaporation, transpiration, and respiration then condensation which falls into raindrops.

The rainwater enters the soil cavity and flows up to the ocean. Meanwhile, the water that flows into the river is used by organisms for various needs, which in the end the water evaporates and returns to the initial process.

2. Carbon and Oxygen Cycle

The process of photosynthesis as an example of the carbon and oxygen cycle. Photo: Pixabay

Carbon and oxygen are the most basic constituents of organic compounds. The source of carbon in nature is CO2 gas which first enters life through stomata in the photosynthesis process of plants.

The product of photosynthesis is oxygen which is used in the respiration process. When this process occurs, carbohydrates will be converted into several forms of compounds such as energy, CO2, and H2O which form a short cycle of CO2 and O2 on a regular basis.

Meanwhile, the long cycle path of carbon and oxygen can occur if there are bacteria that act as decomposers of dead organisms.

Nitrogen in the nitrogen cycle that exists in the universe. Photo: Pixabay

Nitrogen on earth is needed to form proteins and essential organic molecules. There is about 79% of the element nitrogen in the air, but only lower organisms can use it like bacteria and blue algae.

Plants use nitrogen in the form of Nitrate Ions or Ammonium Ions. Nitrogen can also be fixed into Ammonia in an event called Ammonification.

Phosphorus found in rocks. Photo: Pixabay

Phosphorus is the smallest part of the DNA of living things and is present in every cell membrane structure. Phosphorus in animals and humans is found in large amounts, especially in the bones.

The phosphorus cycle is different from several other cycles. Phosphorus is not a gas, but is found in sedimentary rocks. Plants get phosphorus from water dissolved in the soil, while animals get phosphorus from the plants they eat.


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