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Identify from the following, the only taxonomic category that has a real existence.
- a)Phylum
- b)Species
- c)Genus
- d)Kingdom
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Identify from the following, the only taxonomic category that has a re...
Explanation:
Archaebacteria are microorganisms that belong to the domain Archaea. They are prokaryotic organisms, meaning they lack a true nucleus and other membrane-bound organelles that are common in eukaryotic cells. Archaebacteria are known to survive in extreme environmental conditions that would be lethal for most other organisms. This is due to several factors, but the most important one is their rigid cell wall.
Rigid Cell Wall:
Archaebacteria have a unique cell wall composition that is different from that found in other bacteria. Their cell walls are made up of a complex polysaccharide called pseudomurein, which is more resistant to heat, acids, and other harsh environmental conditions than the peptidoglycan found in other bacterial cell walls. This rigid cell wall provides the archaebacteria with a protective barrier that helps them to withstand extreme temperatures, pH levels, and pressures.
Other Factors:
Apart from the rigid cell wall, there are several other factors that contribute to the ability of archaebacteria to survive in extreme environments. These include:
1. Unique metabolic pathways: Archaebacteria have evolved unique metabolic pathways that allow them to extract energy and nutrients from the environment in which they live. These pathways allow them to survive in environments that would be toxic to other organisms.
2. Resistance to radiation: Some archaebacteria are known to be resistant to high levels of radiation, which allows them to survive in environments such as hot springs and deep-sea hydrothermal vents.
3. Adaptability: Archaebacteria are highly adaptable and can adjust their metabolism and other cellular processes in response to changes in their environment. This allows them to survive and thrive in a wide range of conditions.
Conclusion:
In conclusion, archaebacteria can survive in extreme conditions because of their unique cell wall composition, as well as other factors such as their metabolic pathways, radiation resistance, and adaptability. Their ability to survive in extreme environments makes them important models for studying the origin and evolution of life on Earth.
Archaebacteria are microorganisms that belong to the domain Archaea. They are prokaryotic organisms, meaning they lack a true nucleus and other membrane-bound organelles that are common in eukaryotic cells. Archaebacteria are known to survive in extreme environmental conditions that would be lethal for most other organisms. This is due to several factors, but the most important one is their rigid cell wall.
Rigid Cell Wall:
Archaebacteria have a unique cell wall composition that is different from that found in other bacteria. Their cell walls are made up of a complex polysaccharide called pseudomurein, which is more resistant to heat, acids, and other harsh environmental conditions than the peptidoglycan found in other bacterial cell walls. This rigid cell wall provides the archaebacteria with a protective barrier that helps them to withstand extreme temperatures, pH levels, and pressures.
Other Factors:
Apart from the rigid cell wall, there are several other factors that contribute to the ability of archaebacteria to survive in extreme environments. These include:
1. Unique metabolic pathways: Archaebacteria have evolved unique metabolic pathways that allow them to extract energy and nutrients from the environment in which they live. These pathways allow them to survive in environments that would be toxic to other organisms.
2. Resistance to radiation: Some archaebacteria are known to be resistant to high levels of radiation, which allows them to survive in environments such as hot springs and deep-sea hydrothermal vents.
3. Adaptability: Archaebacteria are highly adaptable and can adjust their metabolism and other cellular processes in response to changes in their environment. This allows them to survive and thrive in a wide range of conditions.
Conclusion:
In conclusion, archaebacteria can survive in extreme conditions because of their unique cell wall composition, as well as other factors such as their metabolic pathways, radiation resistance, and adaptability. Their ability to survive in extreme environments makes them important models for studying the origin and evolution of life on Earth.
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Community Answer
Identify from the following, the only taxonomic category that has a re...
Explanation:
Archaebacteria, also known as archaea, are a group of single-celled microorganisms that are distinguished from other bacteria based on their unique genetic, biochemical, and physiological characteristics. They are able to survive in extreme conditions that would be lethal to most other life forms on earth. This is due to several factors, but the most important one is their rigid cell wall.
Rigid Cell Wall:
The cell wall of archaebacteria is composed of a unique molecule called pseudopeptidoglycan or pseudomurein, which is different from the peptidoglycan found in the cell walls of other bacteria. This molecule is more stable and resistant to high temperatures, extreme pH levels, and other harsh environmental conditions. The rigid cell wall also helps to maintain the shape and integrity of the cell, which is important for survival in extreme environments.
Other Factors:
In addition to their cell wall, archaebacteria have other adaptations that allow them to survive in extreme conditions. These include:
- Unique enzymes and metabolic pathways that are able to function at high temperatures or in the absence of oxygen
- Specialized membrane lipids that are more stable and resistant to extreme temperatures and pH levels
- Ability to form spores or cysts that can protect the cell from desiccation or other stresses
Conclusion:
Overall, the ability of archaebacteria to survive in extreme conditions is due to a combination of factors, but their rigid cell wall is one of the most important adaptations that allow them to thrive in environments that would be deadly to other organisms.
Archaebacteria, also known as archaea, are a group of single-celled microorganisms that are distinguished from other bacteria based on their unique genetic, biochemical, and physiological characteristics. They are able to survive in extreme conditions that would be lethal to most other life forms on earth. This is due to several factors, but the most important one is their rigid cell wall.
Rigid Cell Wall:
The cell wall of archaebacteria is composed of a unique molecule called pseudopeptidoglycan or pseudomurein, which is different from the peptidoglycan found in the cell walls of other bacteria. This molecule is more stable and resistant to high temperatures, extreme pH levels, and other harsh environmental conditions. The rigid cell wall also helps to maintain the shape and integrity of the cell, which is important for survival in extreme environments.
Other Factors:
In addition to their cell wall, archaebacteria have other adaptations that allow them to survive in extreme conditions. These include:
- Unique enzymes and metabolic pathways that are able to function at high temperatures or in the absence of oxygen
- Specialized membrane lipids that are more stable and resistant to extreme temperatures and pH levels
- Ability to form spores or cysts that can protect the cell from desiccation or other stresses
Conclusion:
Overall, the ability of archaebacteria to survive in extreme conditions is due to a combination of factors, but their rigid cell wall is one of the most important adaptations that allow them to thrive in environments that would be deadly to other organisms.
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Identify from the following, the only taxonomic category that has a real existence.a)Phylumb)Speciesc)Genusd)KingdomCorrect answer is option 'B'. Can you explain this answer?
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