In the molecular model below, structure A is composed of:
Understand the Problem
The question is asking about the composition of a molecular structure labeled 'A' in the image. We need to identify which biomolecule (protein, phospholipid, nucleic acid, or carbohydrate) is represented by structure A based on general biological knowledge.
Answer
Protein
The final answer is protein.
Answer for screen readers
The final answer is protein.
More Information
The image depicts a cross-section of a cell membrane with proteins embedded in the phospholipid bilayer. These proteins can span across the membrane or be partially embedded.
Tips
A common mistake is confusing the entire membrane structure with phospholipids, while the proteins are the components labelled as structure A.
Sources
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