Multiple Choice
Which functional group is formed when an alcohol reacts with a carboxylic acid under acidic conditions?
2. Molecular Representations
Functional Groups
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Which functional group is commonly found in lipopolysaccharides (LPS) of bacterial cells?
A
Amino group
B
Hydroxyl group
C
Carboxyl group
D
Phosphate group
Verified step by step guidance1
Understand the structure of lipopolysaccharides (LPS): LPS are large molecules found in the outer membrane of Gram-negative bacteria, consisting of a lipid component and a polysaccharide component.
Identify the functional groups typically present in LPS: LPS molecules often contain various functional groups, including phosphate groups, which are crucial for their biological function.
Recognize the role of phosphate groups in LPS: Phosphate groups contribute to the negative charge of LPS, which is important for the stability and function of the bacterial outer membrane.
Compare the given options: Amino groups, hydroxyl groups, and carboxyl groups are common in many biological molecules, but phosphate groups are specifically significant in the context of LPS.
Conclude that the phosphate group is the functional group commonly found in lipopolysaccharides, as it plays a key role in their structure and function.
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