Answer
The pH of chyme entering the duodenum is
adjusted by bicarbonate-rich secretions from the pancreas.
Work Step by Step
The chyme is gradually pushed down the duodenum by peristaltic waves which flow down the length of the digestive tract. Most of the digestion of the protein, fats, and carbohydrates in the chyme is done by the enzymes in the duodenum before the resultant mixture is passed further into the small intestine.
