Breathe in, breathe out revision quiz

1. Oxygen moves from the lungs into the blood stream through _________________.

• Trachea

• Bronchi

• Bronchioles

• Alveoli

Which part of the respiratory tract carries air in and out of our lungs?

• Bronchi

• Bronchioles

• Alveoli

• Trachea

What is another name for voice box?

• Lungs

• Larynx

• Trachea

• Oesophagus

During heavy exercises, breathing rate of a person ____________.

• Increases

• Decreases

• Remains same

• None of the above

What body structure protects the lungs from outside harm?

• Cartilage

• Alveoli

• Diaphragm

• Rib cage

When we breathe in, the chest cavity-

• Expands

• Contracts

• Does not change

A disease which is caused because of air pollution-

• Malaria

• Asthama

• Viral

• Diabetes

What do traffic police man wear to protect themselves from pollution?

• Pollution gas mask

• Cap

• Helmet

• Scarf

Which gas is thrown out as a waste from lungs?

• Smoke

• Oxygen

• Carbon dioxide

• Hydrogen

What is the purpose of the little hair inside the nose?

• To fight diseases

• To keep dust out of lungs

• To tickle the nose and cause sneezes

• They serve no purpose