Science Reviewer

Which of the following is NOT a part of the digestive system?

• Liver

• Kidney

• Stomach

• small intestine

How does the nervous system regulate digestion?

• By producing enzymes

• By secreting hormones

• By controlling muscle contractions

• By filtering waste products

What is the main function of the small intestine?

• Absorption of nutrients

• Mechanical processing of food

• Secretion of digestive enzymes

• Storage of bile

Which body system transports nutrients absorbed by the digestive system?

• Nervous system

• Circulatory system

• Respiratory system

• Endocrine system

What roles do the liver and gallbladder play in digestion?

• Producing bile

• Absorbing nutrients

• Filtering blood

• Pumping oxygen

How does food move through the digestive tract?

• Through diffusion

• Through muscle contractions

• Through osmosis

• Through passive transport

Which of the following is a mechanical processing step in digestion?

• Absorption

• Emulsification

• Enzymatic breakdown

• Chemical digestion

What happens during the process of absorption in the digestive system?

• Food is broken down into smaller molecules

• Nutrients move from the digestive tract into the bloodstream

• Waste products are eliminated from the body

• Enzymes are secreted to aid in digestion

What is the primary function of the large intestine?

• Absorption of water and minerals

• Absorption of nutrients

• Production of bile

• Secretion of digestive enzymes

How do body systems work together in digestion and excretion?

• By producing hormones

• By sharing nutrients

• By transporting waste products

• By regulating body temperature