Unit 14 Flashcards
Physiology
The study of how an organism functions
Pressure flow
The movement of a solute due to osmotic pressure from a source to a sink
Vegetative reproduction
Asexual reproduction in plants in which a new plant grows from a fragment of the parent plant
Pollination
Transfer of pollen from a stamen to a pistil
Germination
The process by which a seed develops into a seedling
Phytochromes
Photoreceptors in bacteria, protists, fungi, and plants that are responsible for detecting red light and far-red light
Cryptochromes
Photoreceptors in bacteria, animals, and plants that detect blue and ultraviolet light and contribute to the circadian rhythms that result
Photoperiodism
The response of an organism to seasonal changes in day length
Thermoperiodism
The response of a plant to the changing temperatures during the changing seasons
Annual
A plant that lives for one growing season
Perennial
A plant that lives for multiple growing seasons
Biennial
A plant that lives for 2 growing seasons, flowering in one
Abscission
A process in which the plant seals off its connection to the leaf, causing the leaf to die and fall off
Dormancy
The state in which normal physical functions are suspended or slowed down
Quiescence
A short term resting state in a seed where growth of the embryo is suspended
