Multiple Choice
Many species of Archaea are known to thrive in environments in which most living things would not survive. We call these Archaea…
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1. Introduction to Microbiology
Introduction to Archaea
Multiple Choice
Which of the following features distinguishes archaea from animal cells?
A
Archaea use DNA as their genetic material, while animal cells use RNA.
B
Archaea reproduce by mitosis, while animal cells reproduce by binary fission.
C
Archaea contain membrane-bound organelles, while animal cells do not.
D
Archaea have cell walls composed of pseudopeptidoglycan, while animal cells lack cell walls.
Verified step by step guidance1
Step 1: Understand the basic cellular characteristics of archaea and animal cells. Both archaea and animal cells use DNA as their genetic material, so this feature does not distinguish them.
Step 2: Review the modes of reproduction. Archaea reproduce primarily by binary fission, a form of asexual reproduction common in prokaryotes, whereas animal cells reproduce by mitosis, a process of eukaryotic cell division.
Step 3: Examine the presence of membrane-bound organelles. Animal cells, being eukaryotic, contain membrane-bound organelles such as the nucleus and mitochondria, while archaea, as prokaryotes, lack these organelles.
Step 4: Focus on the cell wall composition. Archaea have cell walls made of pseudopeptidoglycan, a unique polymer different from the peptidoglycan found in bacterial cell walls, whereas animal cells do not have cell walls at all.
Step 5: Conclude that the distinguishing feature is the presence of a cell wall composed of pseudopeptidoglycan in archaea, which animal cells lack, making this the correct distinguishing characteristic.
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