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An obligate aerobe is an organism that requires oxygen to grow. [1] Through cellular respiration, these organisms use oxygen to metabolise substances, like sugars or fats, to obtain energy. [1][2] In this type of respiration, oxygen serves as the terminal electron acceptor for the electron transport chain. [1]
- Main Difference – Facultative vs Obligate
- What Is Facultative
- What Is Obligate
- Similarities Between Facultative and Obligate
- Difference Between Facultative and Obligate
In ecology, facultative and obligate are two terms used to describe organisms based on the mechanism of obtaining energy by each organism. Generally, organisms produce energy through cellular respiration. The three main types of cellular respiration are aerobic respiration, fermentation, and anaerobic respiration. The organisms that use either facu...
Facultative refers to the ability to live under more than one specific environmental conditions. The three types of facultative organisms are bacteria, fungi, and endoparasites such as protozoans and nematodes.
Obligate means be restricted to a particular characteristic. Obligate organisms such as bacteria, fungi, algae and endoparasites can be identified in nature. Most algae are obligate aerobes.
Facultative and obligate are two types of organisms categorized based on the types of cellular respiration the used to obtain energy.The three types of cellular respiration methods used by both facultative and obligate are aerobic respiration, anaerobic respiration, and fermentation.Both facultative and obligate can be bacteria, fungi or endoparasites.Definition
Facultative: Facultative refers to the ability to live under more than one specific environmental condition. Obligate: Obligate means to be restricted to a particular characteristic.
Types of Cellular Respiration
Facultative: Facultative organisms obtain energy from aerobic respiration, anaerobic respiration, and fermentation. Obligate: Obligate organisms obtain energy from aerobic respiration, anaerobic respiration or fermentation.
Types
Facultative: A single type of facultative organisms can be identified as facultative anaerobes. Obligate: Two types of obligate organisms can be identified as obligate aerobes and obligate anaerobes.
An obligate aerobe is defined as a microorganism that requires oxygen for its growth and survival (Scheld, 2012). On the other hand, obligate anaerobes are microorganisms that do not require oxygen for growth, and the presence of oxygen can be toxic to them (Lu and Imlay, 2021).
Jun 16, 2022 · An obligate aerobe is an aerobe that requires oxygen for aerobic respiration. Obligate aerobes need oxygen to oxidize substrates (for example sugars and fats) in order to obtain energy. They use oxygen as the terminal electron acceptor during aerobic respiration. They have the advantage of yielding more energy than obligate anaerobes.
Bacteria, yeasts, fungi, and algae are capable of aerobic growth. The opposite of an aerobe is an anaerobe. An anaerobe does not require oxygen, or sometimes cannot even tolerate the presence of oxygen. There are various degrees of oxygen tolerance among aerobic microorganisms. Those that absolutely require oxygen are known as obligate aerobes.
Apr 21, 2024 · Key Concepts and Summary. Algae are a diverse group of photosynthetic eukaryotic protists. Algae may be unicellular or multicellular. Large, multicellular algae are called seaweeds but are not plants and lack plant-like tissues and organs. Although algae have little pathogenicity, they may be associated with toxic algal blooms that can harm ...
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Aerobic organisms live in oxic environments. Obligate aerobes are strictly dependent on oxygen and need it to grow. Aerobes usually use oxygen as the terminal electron acceptor in energy metabolism. Alveolates. The alveolates are a group of unicellular eukaryotes, including dinoflagellates, apicomplexans, and ciliates. Amoebozoa
