Q4: Gas Exchange Flashcards
The process by which a respiratory gas is transferred from the atmosphere to bodily tissues for use in metabolism; and the gas produced by metabolism is transferred from tissues to the atmosphere.
Gas exchange
Two sites in the body of an organism where gas exchange occur
- respiratory organ
- cells/tissues
Types of respiratory medium
- air/atmosphere
- water
True or False
Gills are more efficient than lungs at obtaining O2.
True
Types of respiratory organs for animals
- direct diffusion
- skin
- gills
- tracheal system
- lungs
A type of respiration of simple animals where every cell in the body is close enough to the external environment that gases can diffuse quickly between any cell and the environment.
direct diffusion
Type of respiratory organs
Flatworms
Cnidarians
Sponges
direct diffusion
It is an integumentary organ that serves as a respiratory organ.
skin
Dense network of capillaries just below this organ facilitates the exchange of gases between the circulatory system and the environment.
skin
Type of respiratory organs
Amphibians
Earthworms
skin
These are outfoldings of the body surface that are suspended in the water.
gills
It is a network of air tubes that branch throughout the body within an organism (Insects).
tracheal system
True or False
Gills often have a total surface area much greater than that of the rest of the body’s exterior.
True
These are localized respiratory organs that are subdivided into numerous pockets through infoldings of its surface area.
lungs
True or False
Plants have no specialized organs for gas exchange.
True
