Exploring the Digestive System

Which systems are directly involved in moving the bones of the body?

• Endocrine and immune systems

• Circulatory and respiratory systems

• Nervous and digestive systems

• Skeletal and muscular systems

What is the primary function of the digestive system?

• To break down food into nutrients

• To control body movements

• To circulate blood throughout the body

• To filter waste from the blood

What are the main macronutrients absorbed by the body?

• Vitamins, minerals, and water

• Carbohydrates, proteins, and fats

• Enzymes, acids, and bases

• Oxygen, carbon dioxide, and nitrogen

Tags

NGSS.MS-LS2-1

What triggers the release of saliva in the mouth?

• Chewing food

• The smell of food

• Absorbing nutrients

• Swallowing food

What is peristalsis?

• The process of breaking down food in the stomach

• The muscular contractions that move food through the esophagus

• The absorption of nutrients in the intestines

• A type of digestive enzyme

What role does the stomach acid play in digestion?

• Absorbing nutrients

• Breaking down food molecules

• Producing digestive enzymes

• Transporting food to the intestines

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NGSS.MS-LS1-7

Where does the majority of nutrient absorption occur?

• In the esophagus

• In the small intestine

• In the large intestine

• In the stomach

What is the function of Villi in the small intestine?

• To produce digestive enzymes

• To move food through the intestine

• To absorb nutrients into the bloodstream

• To excrete waste products

How does the large intestine contribute to hydration?

• By breaking down proteins

• By absorbing water from undigested food

• By filtering blood

• By secreting digestive juices

What is the result of the digestive process?

• Production of energy

• Excretion of waste

• Secretion of enzymes

• Circulation of blood

Tags

NGSS.MS-LS1-7