Compared to globular proteins, fibrous proteins are:
Correct answer: D. More resistant to high temperatures
- A. Less regular in structure
- B. Less stable chemically
- C. More readily soluble
- D. More resistant to high temperatures
Explanation
Fibrous proteins, such as collagen and keratin, have highly ordered structures and are known for their mechanical strength and resistance to high temperatures. These proteins have extensive cross-linking, making them more stable under thermal stress. On the other hand, globular proteins, like enzymes and hemoglobin, are compact and typically more sensitive to temperature changes because they can denature easily. Therefore, fibrous proteins are more resistant to high temperatures, making Option D the correct answer. Options A, B, and C are incorrect because fibrous proteins are more regular in structure, chemically stable, and usually insoluble, respectively.
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