객관식
Which of the following characterizes the domain Bacteria?
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26. Prokaryotes
Introduction to Prokaryotes
객관식
What is one way that organisms in the domain Bacteria differ from organisms in the domain Archaea?
A
Bacteria have peptidoglycan in their cell walls, while Archaea do not.
B
Bacteria can survive in extreme environments, while Archaea cannot.
C
Bacteria have a nucleus, while Archaea do not.
D
Bacteria are always unicellular, while Archaea can be multicellular.
검증된 단계별 안내1
Understand the classification of life: Organisms are classified into three domains: Bacteria, Archaea, and Eukarya. Bacteria and Archaea are both prokaryotic, meaning they do not have a nucleus.
Examine the cell wall composition: One key difference between Bacteria and Archaea is the composition of their cell walls. Bacteria have peptidoglycan in their cell walls, which is a polymer consisting of sugars and amino acids. Archaea, on the other hand, do not have peptidoglycan; instead, they have other types of cell wall structures.
Consider environmental adaptability: Archaea are known for their ability to survive in extreme environments, such as hot springs, salt lakes, and deep-sea hydrothermal vents. This is a characteristic feature of many Archaea, not Bacteria.
Clarify the presence of a nucleus: Both Bacteria and Archaea are prokaryotes, which means neither has a nucleus. This is a common feature of both domains.
Evaluate cellular organization: Both Bacteria and Archaea are typically unicellular. There are no known multicellular Archaea, so both domains are primarily composed of single-celled organisms.
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