Biology Module 14 Flashcards
(18 cards)
Physiology
The study of how an organism (or any one of its parts) functions.`
Pressure-flow
The movement of a solute due to osmotic pressure from a source (high turgor pressure) to a sink (low turgor pressure).
Vegetation 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 annd contribute to the circadian rhythms that result.
Photoperiodism
The response of an organism to seasonal changes in day length.
Thermoperiodism
The responses of a plant to 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 two growing seasons, flowering in the second one.
Abscission
A process in which the plant seals off its connection to a 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 seeds where growth of the embryo is suspended.
Senescence
The process of aging that leads to death.
Apical dominance
The influence of the shoot tip to inhibit the growth of lateral buds, reducing branching.
Tropism
The response of a plant to an environmental stimulus whereby roots, stem, or leaves move toward or away from the stimulus.
