MDCAT Biology MCQ #948

A lab technician is separating silk fibroin from salivary amylase. Which physical property distinguishes the fibrous silk from the globular amylase?

MDCAT Biology MCQ #948

  1. Question 1

    Q1. A lab technician is separating silk fibroin from salivary amylase. Which physical property distinguishes the fibrous silk from the globular amylase?

    • A) Insolubility in aqueous media
    • B) Spherical or ellipsoidal molecular shape
    • C) Sensitivity to minor changes in pH
    • D) Presence of multiple polypeptide chains

    Answer: Insolubility in aqueous media

    Explanation: Fibrous proteins like silk are insoluble in water. Globular proteins like enzymes are soluble in aqueous media.