Lesson 2: The Digestive and Excretory Systems

Question 1

Which shows the best connection between the digestive and excretory systems?

Revolt · Accepted Answer

The digestive system fuels the cells and the excretory system rids the body of the cells’ waste.

Question 2

Which is the role of the gall bladder?

Revolt · Accepted Answer

to store the liquid produced by the liver

Question 3

Which is the proper order of structures that contact the substances removed from the blood?

Revolt · Accepted Answer

nephron → ureter → bladder → urethra

Question 4

Which statement best describes the breakdown of food in the digestive system?

Revolt · Accepted Answer

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.

Question 5

In which part of the digestive system does a chemical change of the food first occur?

Revolt · Accepted Answer

mouth

Question 6

Which occurs during digestion?

Revolt · Accepted Answer

Physical digestion prepares the food for chemical digestion.

Question 7

Which best describes the physical and chemical digestion of food?

Revolt · Accepted Answer

Physical and chemical digestion occur in the mouth; only chemical digestion occurs in the small intestine.

Question 8

The diagram shows a nephron.

Revolt · Accepted Answer

W

Question 9

nephronureterurethrabladder

Revolt · Accepted Answer

nephron

Question 10

The digestive system and the excretory system both excrete waste.Which best describes how waste is secreted in each system?

Revolt · Accepted Answer

The digestive system excretes a solid waste and the excretory system excretes a liquid waste.

Lesson 2: The Digestive and Excretory Systems Answers