17 Questions
Which type of digestion occurs in the gastrovascular cavity in flatworms?
Extracellular digestion
What is the term for food that has passed through the esophagus?
Bolus
Where are most proteins broken down in the human digestive system?
Stomach
What is the role of the liver in processing nutrients?
Further processing nutrients into forms easier for the body to use
Which organism has an incomplete digestive system and can only perform intracellular digestion?
Planarian or flatworms
What is the function of the gallbladder in the human digestive system?
To store and release bile into the duodenum
What is the primary function of the large intestine in the human digestive system?
To recover water and electrolytes from the waste material
What is the first stage of food processing in the digestive system?
Ingestion
What is the primary function of the digestive enzymes in the alimentary canals?
To break down food into smaller molecules
What is the main component of the lymphoid tissues found in the epithelial layer of the ileum?
White blood cells
What is the correct order of the following terms from mouth to rectum?
Bolus, chyme, chyle
Which type of digestive system has only one opening and no anus?
Incomplete digestive system
What is the primary site of nutrient absorption in the human digestive system?
Small intestine
What is the process by which unicellular organisms digest food?
Phagocytosis and lysosomal degradation
What is the terminal portion of the colon called, where feces are stored until they can be eliminated?
Rectum
Where does digestion occur in extracellular digestion?
In the lumen of the alimentary system
What is the final stage of food processing in the digestive system?
Elimination
Learn about the different types of digestive systems in organisms, including incomplete and complete systems, and how they function. Discover how unicellular organisms, like Paramecium, and multicellular organisms, like Hydra, digest their food.
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