In Egg, Egg white contributes
**Core Concept**
Egg white, also known as albumen, is a clear, protein-rich liquid surrounding the yolk of an egg. It plays a crucial role in the development and structure of the egg.
**Why the Correct Answer is Right**
The correct answer is related to the primary function of egg white, which is to provide nutrients and protection to the developing chick. Egg white is rich in proteins such as ovotransferrin, ovomucoid, and ovomacroglobulin, which help to nourish the embryo and provide structural support. The proteins in egg white also contain enzymes that help to break down the proteins in the yolk, allowing the chick to absorb the nutrients it needs to grow.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because egg yolk, not egg white, is primarily responsible for providing fat-soluble vitamins and cholesterol to the developing chick.
**Option B:** Incorrect because the shell membrane, not egg white, is the thin, transparent layer of tissue that separates the egg white from the shell.
**Option C:** Incorrect because the chalaza, not egg white, is the rope-like structure that anchors the yolk to the shell membrane.
**Clinical Pearl / High-Yield Fact**
It's worth noting that egg white is also used as a source of proteins in food products and is a common ingredient in many recipes. Additionally, egg white contains lysozyme, an enzyme that has antimicrobial properties and is used in some medical applications.
**Correct Answer:**
A. Provides nutrients and protection to the developing chick.