Digestive system

What are the main organs of the digestive system?

• Mouth, esophagus, stomach, small intestine, large intestine, and liver

• Heart, lungs, kidneys, brain

• Spleen, pancreas, gallbladder, bladder

• Skin, muscles, bones, blood vessels

Explain the function of the esophagus in the digestive system.

• Absorbing nutrients from the food

• Producing digestive enzymes

• Transporting food from the mouth to the stomach

• Storing bile for digestion

What is the role of the stomach in the process of digestion?

• It breaks down food with acidic juices and churning motion.

• It stores waste before elimination

• It absorbs nutrients from the food

• It regulates the body's temperature

Describe the structure and function of the small intestine.

• The small intestine is a short organ responsible for storing waste products

• The small intestine is a long tube-like organ that is responsible for the absorption of nutrients from the food we eat.

• The small intestine is a flat organ that helps in breathing

• The small intestine is a bone-like structure that supports the spine

Explain the process of mechanical digestion.

• The physical breakdown of food into smaller pieces through chewing and the churning action of the stomach and small intestine.

• The process of converting food into energy

• The absorption of nutrients in the small intestine

• The breakdown of food by enzymes in the mouth

What is the role of enzymes in the process of digestion?

• Enzymes help break down food into smaller molecules that can be absorbed by the body.

• Enzymes only work in the small intestine

• Enzymes have no role in the process of digestion

• Enzymes help to increase the size of food particles

Describe the process of chemical digestion in the digestive system.

• Food is absorbed directly into the bloodstream

• Enzymes break down food into smaller molecules

• Chemical digestion occurs in the lungs

• The digestive system only uses mechanical digestion

What are the three main types of nutrients that are digested in the digestive system?

• Protein, fiber, and cholesterol

• Sugars, starches, and cellulose

• Vitamins, minerals, and water

• Carbohydrates, proteins, and fats