The Digestive and Excretory Systems

Which body system is primarily responsible for removing waste products from the body?

• Digestive system

• Respiratory system

• Excretory system

• Nervous system

How do the major systems of the human body maintain homeostasis?

• By functioning independently without interacting

• By only the nervous system controlling all other systems

• By all systems performing the same functions

• By interacting with each other to maintain a stable internal environment

What is the primary function of the digestive system?

• To transport oxygen throughout the body

• To break down food into nutrients for energy and growth

• To control body movements

• To pump blood to various organs

Which system is responsible for transporting nutrients?

• Digestive system

• Nervous system

• Circulatory system

• Respiratory system

What role does the nervous system play in digestion?

• It breaks down the food physically

• It absorbs nutrients from the food

• It controls and regulates the digestive system

• It produces digestive enzymes

What is the purpose of mechanical digestion in the digestive process?

• To absorb nutrients directly into the bloodstream

• To increase the surface area of food for chemical digestion

• To produce digestive enzymes

• To eliminate waste products from the body

What happens during chemical digestion?

• Food is physically broken down into smaller pieces

• Nutrients are absorbed into the bloodstream

• Large molecules of food are broken down into smaller molecules

• Waste materials are compacted for excretion

What role do enzymes play in the digestive system?

• They increase the temperature inside the stomach

• They help in the absorption of nutrients

• They break down large molecules into smaller molecules

• They transport nutrients to different parts of the body

Where does digestion begin in the human body?

• Stomach

• Mouth

• Esophagus

• Small intestine

What role do teeth play in digestion?

• Absorbing nutrients

• Secreting digestive enzymes

• Breaking and crushing food

• Transporting food to the stomach