Final answer:
Diarrhea is true when waste moves too quickly through the large intestine preventing adequate water absorption. This can be due to foodborne pathogens among other causes, contrasting with constipation which involves too much water absorption due to delayed defecation.
Step-by-step explanation:
The statement 'Diarrhea results when food passes too quickly through the large intestine' is true. Diarrhea occurs when the large intestine does not have sufficient time to absorb water from the waste matter, leaving it loose and watery. This condition can stem from the rapid movement of waste due to various factors including the ingestion of foodborne pathogens.
If defecation is prolonged, more water is absorbed, leading to firmer feces and potentially causing constipation. However, not enough water absorption results in diarrhea. A healthy diet, adequate hydration, stress management, and overall health contribute greatly to normal bowel movement frequency, which can range vastly between individuals.