Multiple Choice
Which of the following structures consists of glycerol and fatty acids?
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32. Lipids
Intro to Lipids
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What structural component differentiates triglycerides from phospholipids?
A
Triglycerides contain three fatty acid chains, while phospholipids contain two fatty acid chains and a phosphate group.
B
Triglycerides have a glycerol backbone, while phospholipids do not.
C
Triglycerides contain a phosphate group, while phospholipids contain three fatty acid chains.
D
Triglycerides are composed of amino acids, while phospholipids are composed of nucleotides.
Verified step by step guidance1
Identify the basic structure of triglycerides: Triglycerides are composed of a glycerol backbone attached to three fatty acid chains.
Identify the basic structure of phospholipids: Phospholipids consist of a glycerol backbone, two fatty acid chains, and a phosphate group.
Compare the number of fatty acid chains: Triglycerides have three fatty acid chains, whereas phospholipids have two.
Identify the presence of a phosphate group: Phospholipids contain a phosphate group, which is absent in triglycerides.
Clarify the misconception: Triglycerides do not contain amino acids or nucleotides, and phospholipids do not contain three fatty acid chains.
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