Respiratory System

Which of the following does not affect the rate of gas exchange?

• Temperature

• Pressure

• Concentration difference

• Diffusion distance

Simple gas exchange relies on...

• Osmosis

• Diffusion

• Countercurrent flow

• Skin respiration

Which of the following is NOT true regarding skin respiration?

• Diffusion is not an efficient enough mechanism

• The skin must always be kept moist

• The skin is lined with many capillaries for gas exchange

• Gas exchange only occurs in specialized respiratory organs

Which of the following is true about the respiratory system of fish?

• Gas exchange happens throughout the entire body and the gills

• Water flows over the gills in only one direction

• The gill is not always exposed to water as it needs to be protected from the external environment

• Water flows over the gill in the same direction as the water to maximize gas exchange

Which of the following is true about the tracheal respiratory system?

• A lot of water is lost during respiration

• The trachea branch off into tracheoles

• Spiracles are external pores that lead to an inner network of tubes

• There is no pressure differential in this system

True or False: Birds use countercurrent exchange

• True

• False

The membrane around the lungs is called the...

• Pleural membrane

• Thoracic membrane

• Mucosal membrane

• Intercostal membrane

Select all the organs that are a part of the upper respiratory tract

• Pharynx

• Trachea

• Glottis

• Larynx

Where is the site of gas exchange?

• Alveoli

• Lungs

• Bronchioles

• Trachea

Inhalation or Exhalation: The diaphragm flattens

• Inhalation

• Exhalation