Multiple choice Which of the following enzymes are also known as anti-egg white injury factor? Vitamin B1 Vitamin B3 Vitamin B5 Vitamin B7 Vitamin B9 Reveal answer Fill a bubble to check yourself D Correct answer Explanation Biotin (Vitamin B7) is also called anti-egg white injury factor because, egg white contains a protein called avidin, which combines with biotin in the intestinal tract and prevents absorption of biotin from intestines.