Multiple choice

Which of the following is not the protein of aqueous layer of the tear film?

  1. Lipocalin

  2. Lactoferrin

  3. Collagen

  4. Lysozyme

  5. Lacritin

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sclera is a typical fibrous connective tissue containing collagen and elastic fiber. Collagen is a protein that naturally occurs in the body, and is found in cartilage, bones, tendons and skin.