gas exchange Flashcards
involves the use of oxygen produced by photosynthetic organisms and the release of CO2 to the environment as a waste product of reproduction
gas exchange
it is a respiratory surface covered with thin and moist epithelial cells that allow O and Co2 exchange.
Body surface/skin
They greatly increase the surface area for gas exchange in aquatic organisms
Gills
Composed of a series of respiratory tubes that carry the gases directly to the cells for gas exchange.
Tracheal Systems
These are ingrowths of the body wall that connect to the outside environment by a series of respiratory tubes and small openings
Lungs
specialized pores of the leaves where gases enter
stomata
control the opening and closing of the pores
guard cells
also contribute to gas exchange but only w/ a minimal effect
roots and stems
provide a pathway for the direct exchange of gases between the internal tissue of the plant and the atmosphere
lenticels
allow important biological fluids to be transported around the organism
circulatory systems
2 main circulatory organs of plants
phloem, xylem
transports H2O and nutrients from the roots to the different parts of the plant
xylem
transports sugars and other metabolic products from the leaves to the rest of the plant
phloem
elongated cells in the xylem that help in the transport of H2O and nutrients
tracheids
Elongated cells in the phloem that serve as conduits of sugar transport
Sieve tubes
