Multiple Choice
Which type of fatty acid contains its first double bond at the sixth carbon from the methyl (omega) end?
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10. Lipids
Fatty Acids
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes the basic structure of a fatty acid?
A
A sugar molecule with multiple hydroxyl groups
B
A ring structure containing alternating double bonds
C
A chain of amino acids linked by peptide bonds
D
A hydrocarbon chain with a terminal carboxyl group (\(-COOH\))
Verified step by step guidance1
Understand the question: The problem asks for the basic structure of a fatty acid. Fatty acids are a type of lipid, which are essential biomolecules in biochemistry.
Recall the definition of a fatty acid: Fatty acids are composed of a long hydrocarbon chain (a chain of carbon atoms bonded to hydrogen atoms) with a terminal carboxyl group (
). This structure is key to their chemical properties.
Compare the options provided: Analyze each option to determine which matches the definition of a fatty acid. For example, a sugar molecule with multiple hydroxyl groups is characteristic of carbohydrates, not fatty acids. A ring structure with alternating double bonds is typical of aromatic compounds, and a chain of amino acids linked by peptide bonds describes proteins.
Identify the correct answer: Based on the definition, the correct description of a fatty acid is 'A hydrocarbon chain with a terminal carboxyl group (
)'.
Conclude: Fatty acids are fundamental components of lipids and play critical roles in energy storage, membrane structure, and signaling. Understanding their structure is essential for studying their biochemical functions.
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