Which of the following best describes how amino acids affect the tertiary structure of a protein?
Understand the Problem
The question is asking for the best description of how amino acids influence the tertiary structure of proteins. It provides four statements, and the goal is to identify which one accurately describes this relationship based on biological principles.
Answer
Interactions of R-groups determine tertiary structure.
The interactions of the different R-groups with other R-groups and with their environment determine the tertiary structure of the protein.
Answer for screen readers
The interactions of the different R-groups with other R-groups and with their environment determine the tertiary structure of the protein.
More Information
The tertiary structure of a protein is stabilized by various interactions such as hydrogen bonds, ionic bonds, hydrophobic interactions, and disulfide bridges among the side chains (R-groups) of amino acids.
Tips
A common mistake is assuming the sequence of amino acids directly determines the tertiary structure, rather than the interactions among R-groups.
Sources
- AP Biology Chapter 1 Flash Cards - Quizlet - quizlet.com
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