A student examines the properties of keratin and silk fibers. Which characteristic is a defining physical property of these fibrous proteins?
Q1. A student examines the properties of keratin and silk fibers. Which characteristic is a defining physical property of these fibrous proteins?
Answer: Insolubility in aqueous media
Explanation: Fibrous proteins like keratin are insoluble in aqueous media, whereas globular proteins are soluble in salt or acid solutions.