What structure of the large intestine absorbs water, vitamins, and electrolytes as it condenses the waste material? A. Colon B. Rectum C. Cecum D. Anus

Break Down the Problem

1. Identify the structures of the large intestine.
2. Determine the primary functions of each structure regarding absorption.
3. Analyze which structure is responsible for the absorption of water, vitamins, and electrolytes.

Relevant Concepts

• The large intestine includes several parts: cecum, colon, rectum, and anus.
• The colon is primarily involved in the absorption process.

Analysis and Detail

• Cecum: This is the beginning of the large intestine where the ileum (small intestine) connects. It plays a minor role in absorption.
• Colon: The primary function of the colon is to absorb water, vitamins (particularly B vitamins and K), and electrolytes from the indigestible food matter. This process condenses the waste material into feces.
• Rectum: This part stores feces until they are expelled but does not have an absorption role.
• Anus: The anus is the exit point for waste and does not absorb anything.

Verify and Summarize

After considering the functions of each part, the colon is indeed the primary structure that absorbs water, vitamins, and electrolytes while condensing waste material.

Final Answer

A. Colon