Question 1

What is the waste gas that humans need to remove from their bodies?

Accepted Answer

Carbon Dioxide

Answer

Oxygen

Answer

Methane

Answer

Hydrogen

Question 2

What role does mucus play in the respiratory system?

Accepted Answer

Mucus moistens the air we breathe in and traps dirt and germs.

Answer

Mucus provides a source of oxygen for the body.

Answer

Mucus cools down the air that enters the lungs.

Answer

Mucus helps to produce sounds when we talk.

Question 3

What is one function of the small hairs in the nasal cavity?

Accepted Answer

They help trap dirt and germs from the air.

Answer

They assist with the sense of smell.

Answer

They help to produce mucus.

Answer

They cool down the air before it enters the lungs.

Question 4

What is the function of the epiglottis?

Accepted Answer

To prevent food and liquid from entering the lungs

Answer

To filter dust from the air

Answer

To transport air to the trachea

Answer

To help with breathing

Question 5

What is the trachea commonly known as?

Accepted Answer

Windpipe

Answer

Larynx

Answer

Bronchi

Answer

Alveoli

Question 6

Which part of the body is primarily responsible for the expansion of the lungs when inhaling?

Accepted Answer

The diaphragm

Answer

The stomach

Answer

The liver

Answer

The heart

Question 7

What are the tiny sacs at the end of the bronchioles that help in gas exchange?

Accepted Answer

alveoli

Answer

trachea

Answer

blood vessels

Answer

bronchial tubes

Question 8

What gas do the blood vessels in the alveoli take from the lungs to the body?

Accepted Answer

oxygen

Answer

nitrogen

Answer

hydrogen

Answer

carbon dioxide

Question 9

What feature of the alveoli allows for efficient gas exchange?

Accepted Answer

Tiny blood vessels surrounding them

Answer

Large surface area

Answer

Thick walls

Answer

A protective coating

Question 10

How many bronchi does the trachea divide into?

Accepted Answer

two

Answer

four

Answer

one

Answer

three

Question 11

Which part of the respiratory system comes after the bronchi?

Accepted Answer

bronchioles

Answer

lungs

Answer

alveoli

Answer

trachea

Question 12

What process occurs within the cells to produce energy using oxygen?

Accepted Answer

Respiration

Answer

Digestion

Answer

Exhalation

Answer

Ventilation

Question 13

What is the mechanical process of taking air into and out of the body called?

Accepted Answer

Breathing

Answer

Respiration

Answer

Digestion

Answer

Circulation

Question 14

What combination is used by cells during respiration to release energy?

Accepted Answer

Oxygen and glucose

Answer

Glucose and fat

Answer

Oxygen and carbon dioxide

Answer

Carbon dioxide and nitrogen

Question 15

Which of the following is a lung condition?

Accepted Answer

Asthma

Answer

Alzheimer's

Answer

Arthritis

Answer

Diabetes

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