Question 1

What is the main function of the respiratory system?

Accepted Answer

To exchange oxygen and carbon dioxide

Answer

To digest food

Answer

To pump blood

Answer

To filter waste

Question 2

Which of these is NOT a part of the respiratory system?

Accepted Answer

Stomach

Answer

Lungs

Answer

Trachea

Answer

Diaphragm

Question 3

What is the main entry point for air into the respiratory system?

Accepted Answer

Nose

Answer

Ears

Answer

Eyes

Answer

Skin

Question 4

What is the main function of the trachea?

Accepted Answer

To funnel air to and from the lungs

Answer

To filter air

Answer

To produce sound

Answer

To warm up the air

Question 5

What do the lungs allow into the body?

Accepted Answer

Oxygen

Answer

Water vapor

Answer

Nitrogen

Answer

Carbon dioxide

Question 6

What gas does the body get rid of when we breathe out?

Accepted Answer

Carbon dioxide

Answer

Nitrogen

Answer

Oxygen

Answer

Helium

Question 7

What happens when the diaphragm contracts and compresses?

Accepted Answer

The lungs fill with air

Answer

The lungs empty

Answer

The heart beats faster

Answer

The stomach digests food

Question 8

Besides the nose, what other body part can be used to breathe in air?

Accepted Answer

Mouth

Answer

Ears

Answer

Eyes

Answer

Skin

Question 9

Which system works closely with the respiratory system to distribute oxygen throughout the body?

Accepted Answer

Circulatory system

Answer

Nervous system

Answer

Digestive system

Answer

Skeletal system

Question 10

What is the diaphragm?

Accepted Answer

A muscle that helps with breathing

Answer

A type of air sac

Answer

A bone in the chest

Answer

A part of the lung

Question 11

What happens when you inhale?

Accepted Answer

Air enters the lungs

Answer

Air is pushed out of the lungs

Answer

The heart stops beating

Answer

The diaphragm relaxes

Question 12

Which of these is NOT a function of the respiratory system?

Accepted Answer

Digesting food

Answer

Bringing oxygen into the body

Answer

Removing carbon dioxide from the body

Answer

Allowing us to speak

Question 13

What makes your body want to breathe out?

Accepted Answer

Too much carbon dioxide

Answer

Too much oxygen

Answer

Too much helium

Answer

Too much nitrogen

Question 14

What is the correct order of air flow in the respiratory system?

Accepted Answer

Nose/mouth → trachea → lungs

Answer

Trachea → nose/mouth → lungs

Answer

Lungs → trachea → nose/mouth

Answer

Nose/mouth → lungs → trachea

Question 15

What type of system is the respiratory system described as?

Accepted Answer

Biological system

Answer

Electrical system

Answer

Chemical system

Answer

Mechanical system

Question 16

What does the diaphragm do when we breathe in?

Accepted Answer

It contracts and compresses

Answer

It relaxes

Answer

It disappears

Answer

It fills with air

Question 17

Which of these is NOT mentioned as a part of the respiratory system in the presentation?

Accepted Answer

Bronchi

Answer

Diaphragm

Answer

Trachea

Answer

Lungs

Question 18

What is the main difference between what we breathe in and what we breathe out?

Accepted Answer

Oxygen and carbon dioxide levels

Answer

Pressure

Answer

Humidity

Answer

Temperature

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