Question

Which of the below phenomenon is responsible for the movement of food through the digestive tract even when we are hanging upside down?

• A. Osmosis
• B. Peristalsis
• C. Regurgitation
• D. Reverse osmosis

Answer 1

The correct option is B

Peristalsis

First of all, eating food is not a passive process. The food moves through the digestive tract not because of gravity but due to repeated contractions and relaxations that occur throughout the digestive tract. The contractions and relaxations move the food forward and into the digestive system. This is called peristalsis.