Which part of the large intestine absorbs water?

Which part of the large intestine absorbs water?

• A. Cecum
• B. Colon
• C. Rectum
• D. Small intestine

Answer: (B)

The colon, a vital part of the large intestine, plays a key role in absorbing water from indigestible food matter. As the contents pass through the colon, water is reabsorbed, which helps to form solid waste (feces) and maintain the body's fluid balance. This process is crucial because it ensures that the body retains the necessary amounts of water and prevents dehydration. The cecum begins the absorption process but is not primarily responsible for water reabsorption. While the rectum is the final section of the large intestine primarily involved in storing fecal matter before it is expelled, it does not engage extensively in water absorption. The small intestine is where most nutrient absorption occurs, including some water, but it is not part of the large intestine. Therefore, the colon is specifically recognized for its main function of absorbing water from waste material, making it the correct answer.

The colon, a vital part of the large intestine, plays a key role in absorbing water from indigestible food matter. As the contents pass through the colon, water is reabsorbed, which helps to form solid waste (feces) and maintain the body's fluid balance. This process is crucial because it ensures that the body retains the necessary amounts of water and prevents dehydration.

The cecum begins the absorption process but is not primarily responsible for water reabsorption. While the rectum is the final section of the large intestine primarily involved in storing fecal matter before it is expelled, it does not engage extensively in water absorption. The small intestine is where most nutrient absorption occurs, including some water, but it is not part of the large intestine. Therefore, the colon is specifically recognized for its main function of absorbing water from waste material, making it the correct answer.