Digestive system test

Front

What are rugae?

Back

Rugae are the folds in the lining of the stomach that allow it to expand when food enters.

Front

What is the optimum pH for enzyme activity?

Back

The optimum pH for enzyme activity is the pH at which the enzyme functions best, which can vary by enzyme. For example, one enzyme's optimum pH is 6.6.

Front

Identify the esophagus in a diagram.

Back

The esophagus is the muscular tube that connects the throat (pharynx) with the stomach, typically labeled as 'B' in diagrams.

Front

What is C. diff associated with?

Back

C. diff, or Clostridium difficile, is associated with antibiotic-associated diarrhea.

Front

What is lactose?

Back

Lactose is a natural sugar found in milk.

Front

What is the function of the stomach?

Back

The stomach's primary function is to digest food by mixing it with gastric juices, which contain enzymes and acids.

Front

What role do enzymes play in digestion?

Back

Enzymes speed up the chemical reactions that break down food into nutrients.

Front

What is the pH range for optimal enzyme activity?

Back

The optimal pH range for most enzymes is typically between 5.0 and 9.0, depending on the specific enzyme.

Front

What is the significance of gastric folds?

Back

Gastric folds, or rugae, increase the surface area of the stomach lining, aiding in digestion and absorption.

Front

What is the role of bile in digestion?

Back

Bile helps emulsify fats, making them easier to digest and absorb in the small intestine.