2nd 9 Weeks Test Review 7th Grade

The human body system is made up of organ systems that work together as one unit. Which systems work together to prepare and distribute food for cells?

• digestive and circulatory

• digestive and endocrine

• nervous and respiratory

• nervous and excretory

Which of these indicates a physical change that occurs during the process of digestion?

• the addition of acids to create a ball of food

• the secretion of pepsin to change proteins and peptides

• the breakdown of food substances by digestive juices

• the squeezing of food through the intestines

The body is made up of many systems that interact with one another. For example, the skeletal system and the muscular system work together to help the body move. Which system works with the respiratory system to distribute oxygen to the body?

• muscular system

• digestive system

• lymphatic system

• circulatory system

Which example shows a chemical change to food during digestion?

• teeth chewing food

• enzymes breaking down food

• food moving through the intestines

• food churning in the stomach

A series of physical and chemical changes occur during the process of digestion. Which of the following processes best describes a physical change that occurs during digestion?

• Stomach acid breaks down proteins

• Bile breaks down fat

• Saliva breaking down large molecules into smaller molecules

• Chewing and swallowing food

Kendall studied the ways in which human body systems work together. He compared the respiratory and circulatory systems. In which way are these two systems similar to each other?

• They both bring oxygen to the body.

• They both send messages to the body.

• They both digest nutrients for the body.

• They both pump blood through the body.

Which function to kidneys provide to maintain homeostasis?

• the removal of excess heat from the body

• the removal of carbon dioxide from the body

• the removal of excess oxygen from the blood

• the removal of nitrogenous wastes from the blood

The following describes an organ system in the human body: DEFENDS THE BODY FROM INVADING MICROORGANISMS AND VIRUSES. What system is this likely part of?

• immune system

• endocrine system

• respiratory system

• digestive system

Human organ systems work together in many ways. Which statement accurately explains the relationship between two body systems?

• The excretory system regulates the temperature of the integumentary system

• The nervous system regulates the movement of the muscular system

• The skeletal system delivers nutrients absorbed by the endocrine system

• The digestive system delivers oxygen absorbed by the respiratory system

The respiratory system cannot deliver oxygen to the cells of the body, nor can it remove carbon dioxide, without which two body systems?

• muscular and nervous

• digestive and muscular

• cardiovascular and nervous

• cardiovascular and muscular