Which type of fatty acid contains its first double bond at the sixth carbon from the methyl (omega) end?
A
Omega-9 fatty acid
B
Omega-3 fatty acid
C
Saturated fatty acid
D
Omega-6 fatty acid
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1
Understand the structure of fatty acids: Fatty acids are long hydrocarbon chains with a carboxyl group (-COOH) at one end and a methyl group (-CH₃) at the other end. The omega (ω) end refers to the methyl group.
Learn about the naming convention for omega fatty acids: Omega fatty acids are named based on the position of the first double bond relative to the omega (methyl) end of the chain. For example, an omega-6 fatty acid has its first double bond at the sixth carbon from the omega end.
Compare the options provided: Saturated fatty acids do not contain any double bonds, so they cannot be classified as omega fatty acids. Omega-3 fatty acids have their first double bond at the third carbon from the omega end, and omega-9 fatty acids have their first double bond at the ninth carbon from the omega end.
Identify the correct answer: Based on the definition, an omega-6 fatty acid contains its first double bond at the sixth carbon from the omega (methyl) end of the chain.
Conclude the reasoning: The correct answer is 'Omega-6 fatty acid' because it matches the description provided in the problem.