Indicate whether each of the following statements is true or false. Rewrite the underlined phrase to make a false statement true.


_______Methane is a gas produced by microbial metabolism that can be used directly as a fuel source.

Verified step by step guidance

1. Identify the statement: Methane is a gas produced by microbial metabolism that can be used directly as a fuel source.
2. Determine if the statement is true or false: Methane is indeed a gas produced by microbial metabolism, specifically by methanogenic archaea, and it can be used as a fuel source.
3. Since the statement is true, no rewriting is necessary to make it true.
4. If the statement were false, identify the incorrect part and replace it with accurate information. For example, if it incorrectly stated that methane is not produced by microbes, you would correct it to state that it is produced by methanogenic archaea.
5. Conclude by confirming the statement's accuracy or providing the corrected version if it was false.

Key Concepts

Microbial Metabolism

Microbial metabolism refers to the biochemical processes that occur within microorganisms to convert nutrients into energy and cellular components. This includes catabolic pathways that break down organic matter, releasing energy, and anabolic pathways that synthesize necessary biomolecules. Understanding these processes is crucial for recognizing how microbes contribute to various biogeochemical cycles, including the production of gases like methane.

Methane Production

Methane production, or methanogenesis, is a specific type of microbial metabolism carried out by methanogenic archaea, primarily in anaerobic environments. These microorganisms convert organic substrates, such as carbon dioxide and hydrogen, into methane gas. This process is significant in natural ecosystems, such as wetlands, and in engineered systems like anaerobic digesters, where methane can be captured and utilized as a renewable energy source.

Renewable Energy Sources

Renewable energy sources are energy forms that are replenished naturally and can be used sustainably over time. Methane, when produced from biological processes, is considered a renewable energy source because it can be generated from organic waste materials. Understanding the role of microbial processes in producing renewable energy is essential for developing sustainable energy solutions and reducing reliance on fossil fuels.