Question 1

What organ is primarily responsible for gas exchange in the respiratory system?

Accepted Answer

Lungs

Answer

Stomach

Answer

Heart

Answer

Liver

Question 2

Which part of the respiratory system helps to filter and warm the air you breathe?

Accepted Answer

Nose

Answer

Larynx

Answer

Bronchi

Answer

Diaphragm

Question 3

What is the main muscle that helps you breathe by moving up and down?

Accepted Answer

Diaphragm

Answer

Sinuses

Answer

Lungs

Answer

Ribcage

Question 4

What tiny sacs in the lungs are responsible for exchanging oxygen and carbon dioxide?

Accepted Answer

Alveoli

Answer

Bronchioles

Answer

Trachea

Answer

Pharynx

Question 5

What is the tube that carries air from the throat to the lungs?

Accepted Answer

Trachea

Answer

Esophagus

Answer

Aorta

Answer

Diaphragm

Question 6

What is the process called when we take in oxygen and expel carbon dioxide?

Accepted Answer

Respiration

Answer

Circulation

Answer

Digestion

Answer

Nourishment

Question 7

Which part of the respiratory system is known as the voice box?

Accepted Answer

Larynx

Answer

Trachea

Answer

Bronchus

Answer

Pharynx

Question 8

What substance do we need to breathe in to survive?

Accepted Answer

Oxygen

Answer

Hydrogen

Answer

Carbon Dioxide

Answer

Nitrogen

Question 9

What prevents food and liquid from entering the trachea when you swallow?

Accepted Answer

Epiglottis

Answer

Larynx

Answer

Nasal Cavity

Answer

Pharynx

Question 10

What part of the respiratory system branches off from the trachea and leads into the lungs?

Accepted Answer

Bronchi

Answer

Larynx

Answer

Diaphragm

Answer

Alveoli

Question 11

What is the main function of the respiratory system?

Accepted Answer

To exchange oxygen and carbon dioxide

Answer

To pump blood

Answer

To create energy

Answer

To digest food

Question 12

Which part of the respiratory system is also known as the windpipe?

Accepted Answer

Trachea

Answer

Bronchi

Answer

Diaphragm

Answer

Alveoli

Question 13

What tiny air sacs in the lungs are responsible for gas exchange?

Accepted Answer

Alveoli

Answer

Bronchioles

Answer

Larynx

Answer

Trachea

Question 14

What muscle helps us breathe by contracting and relaxing?

Accepted Answer

Diaphragm

Answer

Heart

Answer

Liver

Answer

Lungs

Question 15

Which gas do we inhale that is essential for life?

Accepted Answer

Oxygen

Answer

Carbon Dioxide

Answer

Nitrogen

Answer

Helium

Question 16

What is the function of the cilia in the respiratory system?

Accepted Answer

To trap and move particles out of the airways

Answer

To help with digestion

Answer

To absorb oxygen

Answer

To produce sound

Question 17

What is the role of the nasal cavity in the respiratory system?

Accepted Answer

To filter, warm, and moisten the air we breathe

Answer

To produce mucus

Answer

To store oxygen

Answer

To exchange gases

Question 18

What happens to the diaphragm when you inhale?

Accepted Answer

It contracts and moves downwards

Answer

It relaxes and moves upwards

Answer

It expands and fills with air

Answer

It stays the same

Question 19

Which part of the brain controls breathing?

Accepted Answer

Medulla oblongata

Answer

Hypothalamus

Answer

Cerebrum

Answer

Cerebellum

Question 20

What do we exhale as a waste product of respiration?

Accepted Answer

Carbon dioxide

Answer

Hydrogen

Answer

Nitrogen

Answer

Oxygen

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