The Digestive System

Question 1

A tiny robot named Zippy slides through a model of the human digestive system, entering the first opening and exiting the last one. Which sequence lists the five parts Zippy passes through in the correct order from start to finish?

Accepted Answer

mouth, oesophagus, stomach, small intestine, large intestine

Answer

mouth, stomach, oesophagus, small intestine, large intestine

Answer

mouth, oesophagus, small intestine, stomach, large intestine

Answer

mouth, oesophagus, stomach, large intestine, small intestine

Question 2

Which statement correctly describes the main function of the organ listed?

Accepted Answer

The small intestine absorbs nutrients into the bloodstream.

Answer

The large intestine breaks down food into smaller pieces.

Answer

The mouth absorbs nutrients into the bloodstream.

Answer

The stomach mixes food with saliva.

Question 3

A piece of sandwich goes through three parts of the digestive system: the mouth, the stomach, and then the small intestine. Which sentence correctly tells what each part does to the food?

Accepted Answer

In the mouth the sandwich is chewed into smaller pieces; in the stomach strong acids turn the food into a liquid mixture; in the small intestine the nutrients are taken into the bloodstream.

Answer

In the mouth the sandwich is turned into a liquid by acids; in the stomach the pieces are chewed; in the small intestine the food is stored for later.

Answer

In the mouth the sandwich is chewed; in the stomach the nutrients are directly absorbed; in the small intestine the food is mixed with acids.

Answer

In the mouth the sandwich is stored; in the stomach the food is broken down into sugars; in the small intestine the pieces are chewed again.

Try three questions

A tiny robot named Zippy slides through a model of the human digestive system, entering the first opening and exiting the last one. Which sequence lists the five parts Zippy passes through in the correct order from start to finish?

Which statement correctly describes the main function of the organ listed?

A piece of sandwich goes through three parts of the digestive system: the mouth, the stomach, and then the small intestine. Which sentence correctly tells what each part does to the food?

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