Digestive System

Reorder the parts of the digestive system.

• Large Intestine

• Small Intestine

• Stomach

• Mouth

• Gullet

What would happen if Organ E is not working properly?

• Food would not be chewed into smaller pieces and mixed with saliva.

• Food cannot be completely digested and absorbed into the blood.

• Solid waste cannot be passed out of the body.

• Water cannot be removed from the undigested food.

_________ is produced in the mouth, stomach and small intestine to help break down food into simpler substances.

• Saliva

• Digestive Juices

• Water

• Bile

Auntie Rita has forgotten to bring her dentures to the restaurant. How would this affect her digestion process?

• Food would not be broken down into smaller pieces.

• Food would not be mixed with saliva.

• Food would not be able to travel into her stomach.

• Food would not be broken down into simpler substances.

The digestive system works with the _______ system to ensure that nutrients from the food we eat is transported to all parts of the body.

• Skeletal System

• Respiratory

• Muscular

• Circulatory

Ali, Barry, Chin Yee and Devi are making a presentation on the digestive system. Which student has made a false statement?

• Ali: No digestion takes place in the large intestine. Thus, digestion ends in the large intestine.

• Barry: The walls of the gullet are line with muscles which help to push the food into the stomach.

• Chin Yee: Digestion begins in the mouth.

• Devi: The stomach produces digestive juices to break down food into simpler substances.

This graph shows the amount of undigested food left in our digestive system as food travels from the mouth to the large intestine. Which part of the digestive system does Part D refer to?

• Mouth

• Stomach

• Small Intestine

• Large Intestine

This graph shows the amount of undigested food left in our digestive system as food travels from the mouth to the large intestine. Which statement explains why Lines B and E are straight?

• Food is being broken down into simpler substances.

• Digestive juices are not produced and food is not being broken down into simpler substances.

• There is no change in the amount of undigested food in B and D.

• There is something wrong with the graph.

Heidi is suffering from diarrhea. After going to the toilet, she notices that her stools are very watery. Which part of her digestive system is not working properly?

• mouth

• stomach

• small intestine

• large intestine