Digestive and Excretory Systems Review

Which organ of the human body passes nutrients from food to the blood?

• gall bladder

• small intestine

• stomach

• kidney

Which set of organs helps the human body get rid of waste?

• bladder, stomach

• skin, pancreas

• pancreas, small intestine

• kidneys, bladder

Which diagram best describes the process shown in diagram B?

• The stomach contracts to push the food back into the esophagus.

• The stomach contracts to absorb the food.

• The stomach contracts to prevent acid from escaping.

• The stomach contracts to mix the food with digestive juices.

Which process happens in the large intestine?

• Water is absorbed from undigested food and solids are formed.

• Ezymes produced to break down the largest proteins.

• Liquid waste is stored until it releases through elimination.

• A bolus is formed and nutrients are sent to parts of the body.

A main function of the digestive system is to:

• use the lungs for the exchange of carbon dioxide and oxygen.

• create hormones that are used to stimulate the release of waste.

• create white blood cells to destroy any harmful bacteria in food.

• use the small intestine to absorb nutrients from the digested food.

Which of the following processes does NOT happen because of saliva?

• food becomes moistened

• an enzyme converts starch to sugar

• water is absorbed from the food

• food particles are made smaller

Which role does the mouth play in the digestive process?

• It mixes the chewed food with air to form chime.

• It mixes the chewed food with saliva to soften it.

• It aborbs and distributes the nutrients from the chewed food.

• It uses the tongue to push chewed food into the esophagus.

The human digestive system allows a person to receive nutrients from the food and water that he or she consumes. What is a necessary step in the process of digestion?

• adding particles of water to allow food to dissolve

• breaking down particles of water with basic substances

• breaking down particles of food and water with chemicals

• adding particles of waste to particles of food and water

Tags

NGSS.MS-LS1-7

Which of the following is true of grinding during digestion?

• The process of grinding is a physical change that takes place in the mouth during digestion.

• The process of grinding is a chemical change that takes place in the mouth during digestion.

• The process of grinding is a physical change that takes place in the small intestine during digestion.

• The process of grinding is a chemical change that takes place in the small intestine during digestion.

The list shows five processes that occur during digestion: tearing, grinding, mixing, churning, and rolling.

Which do these processes most likely occur?

• in the colon

• in the stomach

• in the esophagus

• in the mouth