Question

1. the waste product of the digestive system is called

a. bolus
b. plasma
c. chyme
d feces
e. none of these is correct

Explanation:

• Bolus: It is food that has been chewed and mixed with saliva in the mouth. It is not waste.
• Plasma: It is the liquid part of blood, not related to digestive - system waste.
• Chyme: It is the semi - fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum. It is still in the process of digestion and not waste.
• Feces: It is the solid waste product of the digestive system, formed in the large intestine and excreted via the anus.

Answer:

d. feces