Digestive System

What is the main function of the digestive system?

• To regulate body temperature.

• To filter toxins from the blood.

• To store energy for the body.

• To break down food and absorb nutrients.

Name the organ where most digestion occurs.

• stomach

• small intestine

• large intestine

• esophagus

What is the role of saliva in digestion?

• Saliva aids in digestion by moistening food, beginning carbohydrate breakdown, and facilitating taste.

• Saliva has no role in the digestive process.

• Saliva is only important for oral hygiene.

• Saliva primarily helps in fat digestion.

Which enzyme in saliva helps break down carbohydrates?

• Nuclease

• Protease

• Lipase

• Amylase

What is the name of the tube that connects the throat to the stomach?

• esophagus

• trachea

• pharynx

• larynx

What is the function of the stomach in the digestive process?

• The stomach filters toxins from the blood.

• The stomach produces bile for fat digestion.

• The stomach breaks down food and initiates digestion through mechanical and chemical processes.

• The stomach absorbs nutrients directly into the bloodstream.

What are villi and where are they located?

• Villi are projections in the small intestine that aid in nutrient absorption.

• Villi are cells in the liver that produce bile.

• Villi are found in the stomach and help with digestion.

• Villi are flat structures in the large intestine that store waste.

What is the primary function of the small intestine?

• Filtration of blood

• Production of insulin

• Storage of bile

• The primary function of the small intestine is digestion and absorption of nutrients.

What are the two main types of digestion?

• Mechanical digestion and chemical digestion

• Physical digestion and metabolic digestion

• Biological digestion and enzymatic digestion

• Nutritional digestion and cellular digestion

What is the role of the large intestine?

• The large intestine filters toxins from the blood.

• The large intestine absorbs water and electrolytes, compacts waste, and stores feces.

• The large intestine produces bile for digestion.

• The large intestine is responsible for nutrient absorption.