Breathing, Gas Exchange and Respiration

What is the mechanical process of moving air into and out of the lungs called?

• Respiration

• Breathing

• Diffusion

• Gas exchange

What is the site of gas exchange?

• Alveoli

• Trachea

• Mouth

• Bronchioles

Starting with the mouth, what is the order an oxygen molecule takes on its way from the air outside the body into the blood?

• Trachea

• Alveolus

• Bronchus

• Mouth/Nose

• Bronchiole

Oxygen moves from the alveoli into the capillaries (blood) by what process?

• Active transport
• Filtration
• Diffusion
• Osmosis

Respiration that uses oxygen...

(more than one correct answer)

• Aerobic respiration

• Anaerobic respiration

• Releases more energy than without oxygen

• Releases less energy than without oxygen

True or False: Aerobic respiration produces the same products in animals and plants.

• True

• False

______ + oxygen -> carbon dioxide + water

Anaerobic respiration in plants and fungi produces...

• ethanol and carbon dioxide

• oxygen and water

• lactic acid

• carbon dioxide and water

Anaerobic respiration in animals (including humans) produces...

• carbon dioxide

• ethanoic acid

• lactic acid

• hydrochloric acid

What gases are exchanged in the alveoli?

• carbon dioxide and water

• oxygen and carbon dioxide

• nitrogen and carbon dioxide

• oxygen and nitrogen