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SCI 9 Respiratory System Quiz

Authored by TEACHER ROSE

English

9th Grade

Used 1+ times

SCI 9 Respiratory System Quiz
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of the respiratory system?

Transport nutrients

Pump blood

Exchange gases

Digest food

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organ is the primary site of gas exchange?

Trachea

Bronchi

Alveoli

Diaphragm

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What gas is inhaled by the lungs?

Nitrogen

Oxygen

Carbon dioxide

Helium

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What gas is exhaled from the body?

Hydrogen

Carbon monoxide

Carbon dioxide

Oxygen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What dome-shaped muscle helps with breathing?

Lung

Bronchus

Diaphragm

Rib

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct airflow pathway?

Nose → Larynx → Trachea → Bronchi → Alveoli

Nose → Bronchi → Larynx → Alveoli → Trachea

Nose → Trachea → Larynx → Alveoli → Bronchi

Nose → Alveoli → Bronchi → Trachea → Larynx

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What structure prevents food from entering the windpipe?

Larynx

Epiglottis

Pharynx

Uvula

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