Respiratory Processes Quiz

Which of the following steps occur during inspiration at rest?

• Diaphragm contracts and moves downward

• Intercostal muscles relax

• Lungs deflate

• Air pressure in the lungs increases

Where does the carbon dioxide come from?

• Respiration

• Photosynthesis

• Evaporation

• Condensation

What is the difference between breathing and respiration?

• Breathing is the process of inhaling and exhaling air, while respiration is the cellular process of producing energy.

• Breathing and respiration are the same processes.

• Respiration is the act of taking in oxygen, while breathing is the cellular process of energy production.

• Breathing is only about oxygen intake, while respiration involves only carbon dioxide release.

Identify the part of the body responsible for breathing.

• Heart

• Lungs

• Liver

• Kidneys

How is an alveoli adapted to do its job? Research and write down 4 ways.

• Thin walls for easy gas exchange

• Large surface area for more gas exchange

• Moist lining to dissolve gases

• Rich blood supply for efficient gas transport

What is diffusion?

• The movement of particles from an area of high concentration to an area of low concentration

• The process of a liquid turning into a gas

• The change of a solid directly into a gas

• The absorption of light by a surface

What is gas exchange?

• The process of breathing in oxygen and breathing out carbon dioxide

• The exchange of gases between the atmosphere and the soil

• The process of converting solid waste into gaseous form

• The exchange of gases between the sun and the earth

During Exercise, which additional muscles help with INHALATION in the mechanics of Breathing

• The quadriceps

• sternocleidomastoid (neck muscles)

• Pectorals (chest)

• Biceps

What is the % of oxygen INHALED to the lungs?

• 21%

• 0.04%

• 16%

• 98%

What is the % of oxygen EXHALED FROM the lungs?

• 21%

• 16%

• 0.04%

• 4%