Digestive System

What is the main function of the digestive system?

• To break down food

• To transport oxygen

• To regulate body temperature

• To produce hormones

Which subtopic of the digestive system involves the production of energy?

• metabolism of nutrients

• transportation of food

• excretion of waste

• absorption of nutrients

What is the process called when nutrients are absorbed into the bloodstream?

• absorption

• respiration

• excretion

• digestion

Which subtopic of the digestive system involves the elimination of waste?

• circulatory system

• respiratory system

• excretory system

• nervous system

What are the substances called that help break down food in the digestive system?

• acids

• hormones

• vitamins

• enzymes

Which part of the digestive system is responsible for absorbing nutrients?

• small intestine

• large intestine

• esophagus

• stomach

What is the purpose of digestive enzymes in the digestive system?

• The purpose of digestive enzymes in the digestive system is to break down food into smaller molecules for absorption.

• The purpose of digestive enzymes in the digestive system is to regulate body temperature.

• The purpose of digestive enzymes in the digestive system is to protect the stomach lining.

• The purpose of digestive enzymes in the digestive system is to produce energy for the body.

What are the small finger-like projections in the small intestine called?

• villi

• branches

• tentacles

• cilia

Which subtopic of the digestive system involves the removal of waste from the body?

• excretory system

• nervous system

• respiratory system

• circulatory system

What is the process called when food is broken down into smaller molecules in the digestive system?

• absorption

• digestion

• excretion

• respiration