Question

Among the following, the egg yolk protein is_______.

• A. Livetin
• B. Ovalbumin
• C. Avidin
• D. Conalbumin

Hint:

Remember that most well-known egg proteins like Ovalbumin, Conalbumin, and Avidin are from the egg WHITE. The main yolk proteins are lipoproteins (like lipovitellin) and phosphoproteins (like phosvitin), with water-soluble proteins called livetins.

Answer 1

The Correct Option is A

Step 1: Distinguish between egg yolk and egg white proteins. The egg consists of two primary protein-containing components: the yolk and the white (albumen), each containing distinct protein types.
Step 2: Categorize the following proteins:

Livetin: A major protein class present in egg yolk.
Ovalbumin: The most prevalent protein in egg white.
Avidin: A minor egg white protein that binds to biotin.
Conalbumin (Ovotransferrin): A significant egg white protein with iron-binding capabilities. \end{itemize} Therefore, of the proteins listed, livetin is the egg yolk protein.