Galen Integrated Human Science Exam 1 Practice 2026 – All-in-One Guide to Master Your Knowledge

The large intestine plays a crucial role in the final stages of digestion, primarily by absorbing water and salts from the remaining indigestible food matter. Its function is essential in forming solid waste, or feces, which is then eliminated from the body. As the material moves through the large intestine, the absorption process helps to reclaim water and electrolytes, which are vital for maintaining the body's hydration and electrolyte balance. This process is particularly important as the body aims to optimize its resource use from the food consumed.

In contrast, the other options provided do not accurately describe the primary functions of the large intestine. For instance, while digestive enzymes are produced by other organs, such as the pancreas and salivary glands, the large intestine does not have this capability. Additionally, nutrient absorption predominantly occurs in the small intestine, not the large intestine. Finally, bile is produced by the liver and stored in the gallbladder, ready to assist in the digestion of fats, which is again not a function of the large intestine.