Which of these proteins is an antibacterial agent found in mucus and tears?
A) Hemoglobin
B) Keratin
C) Insulin
D) Lysozyme
E) Valine

Question

Quizplus · Accepted Answer

Lysozyme is an antibacterial protein found in mucus and tears. It breaks down bacterial cell walls by hydrolyzing their peptidoglycan components, making it an effective defense against bacterial infections. Hemoglobin is a protein found in red blood cells that is responsible for carrying oxygen throughout the body. Keratin is a protein found in hair, nails, and skin. Insulin is a hormone that regulates blood sugar levels. Valine is an amino acid that is incorporated into proteins.

Which of These Proteins Is an Antibacterial Agent Found in Mucus