Multiple Choice
Which of the following is a characteristic of a functional group in organic chemistry?
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2. Molecular Representations
Functional Groups
Multiple Choice
Which of the following functional groups is present in both archaea and bacteria, playing a crucial role in their membrane structure?
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B
C
D
Verified step by step guidance1
Understand the context: The problem is asking about a functional group that is crucial in the membrane structure of both archaea and bacteria.
Review the structure of cell membranes: In archaea, the membrane lipids are ether-linked, which is different from the ester-linked lipids found in bacteria and eukaryotes.
Identify the functional groups: An ether group has the general structure R-O-R', where R and R' are alkyl or aryl groups. An ester group has the structure RCOOR', an amide has RCONR'R'', and a ketone has RCOR'.
Compare the functional groups: Ethers are known for their stability in extreme conditions, which is why they are found in the membranes of archaea, allowing them to survive in harsh environments.
Conclude the analysis: Since the problem specifies a functional group present in both archaea and bacteria, and considering the unique stability of ether linkages in archaea, the ether group is the correct answer.
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