Transition of Life from Aquatic to Terrestrial Biomes Flashcards
What is phototropism?
Turning movement of growth in response to a stimulus
What are photochromes?
The turning movement of growth in response to a stimulus
What are long night flowers?
Flowers that require long, uninterrupted periods of night to flower, such as seen in the fall and winter
What are short night flowers?
Flowers that require short periods of night to flower
What is a critical limit when discussing flowers?
The duration of night needed to flower is referred to as the critical limit
What is Transpiration?
Water loss through the stomata; regulated by the guard cells
What are guard cells?
Controlled by phytochromes and potassium ions (K+) movement; regulatesfj
What is osmoregulation?
Water loss by animals is also in need of regulation.
What is homeostasis?
Maintaining a stable internal environment; requires tremendous amounts of energy
What is deamination?
The removal of an amine group from a molecule
What is evaporative cooling?
When the wind (air movement) removes the water it evaporates
What are endotherms?
When animals generate heat from their internal metabolism
What are ectotherms?
When animals (such as reptiles) conform their body temperature to the surrounding environments
What is counter-current heat exchange?
The use of water in the circulatory system to help transfer heat from the internal body coming out in arteries to inward flowing blood in veins
What is thermoregulation?
The controlling of heat within an organism
