Quiz about Respiratory System

Question 1

When you breathe, your lungs take in ___ and remove ___.

Accepted Answer

oxygen/carbon dioxide

Answer

air/oxygen

Answer

carbon dioxide/waste

Answer

waste/air

Question 2

Why does your body need to breathe out carbon dioxide?

Accepted Answer

It can be harmful if it builds up in the bloodstream.

Answer

Without it, the lungs would not function.

Answer

You need it for your body to survive.

Answer

It is delivered to the heart.

Question 3

What is the main organ in the respiratory system?

Accepted Answer

Lungs

Answer

Kidney

Answer

Heart

Answer

Diaphragm

Question 4

When you exercise, your heart beats faster to...

Accepted Answer

spread oxygen throughout your body more quickly.

Answer

make you feel excited.

Answer

let you know you're working hard.

Question 5

Oxygen from the air enters the blood stream at what location?

Accepted Answer

Alveoli

Answer

Cardiac Notch

Answer

Pulmonary Vein

Answer

Paranasal Sinuses

Question 6

Which of the following does NOT make up part of the lungs?

Accepted Answer

Trachea

Answer

Alveoli

Answer

Bronchioles

Answer

Bronchi

Question 7

What is the main function of the respiratory system?

Accepted Answer

to provide oxygen and remove carbon dioxide from the body

Answer

to bring oxygen to the body

Answer

to break down food and absorb nutrients

Answer

to remove oxygen from the body and deliver carbon dioxide

Question 8

As you breathe this contracts and flattens to give your lungs room to fill up with air.

Accepted Answer

diaphragm

Answer

larynx

Answer

lung balloon

Answer

heart

Question 9

Alveoli have very thick walls to maximise the distance that gases have to move.

Accepted Answer

False

Answer

True

Question 10

The air sacs that are covered with capillaries where gas exchange takes place

Accepted Answer

alveoli

Answer

bronchi

Answer

lungs

Answer

oxygen

Question 11

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries.

Accepted Answer

alveoli

Answer

trachea

Answer

bronchi

Answer

diaphragm

Question 12

What is the function of the bronchi?

Accepted Answer

Transport air from trachea to lungs

Answer

Transport air from nose to lungs

Answer

Transport air from lungs to alveoli

Answer

Transport air from alveoli to blood

Question 13

When the gasses are exchanged between the alveoli in the lungs and the capillaries, oxygen enters the blood stream. What happens with this oxygen?

Accepted Answer

Oxygen in the blood is delivered to the tissues and cells of the body to help make energy.

Answer

Oxygen in the blood is delivered to the lungs to be exhaled.

Answer

Oxygen in the blood is delivered to the nose to be exhaled.

Answer

Oxygen in the blood is a waste that needs to be removed from the boyd.

Question 14

Cellular Respiration is

Accepted Answer

when cells use oxygen and nutrients to make all the energy your body needs (CO2 and wastes are created).

Answer

when cells inhale oxygen and exhale CO2

Answer

when cells use CO2 and nutrients to make all the energy your body needs (Oxygen and wastes are created).

Answer

breathing

Question 15

Why does CO2 build up (or increase) inside your lungs when you hold your breath? (Choose the BEST answer.)

Accepted Answer

Because the circulatory system is still pumping blood and delivering CO2 to your lungs, even if you don't exhale it.

Answer

Because the circulatory system is still pumping blood by your lungs.

Answer

Because your lung always have CO2 in them.

Answer

Because the circulatory system is still pumping blood and delivering Oxygen to your lungs, oxygen created as waste in cells.

Respiratory System

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