Definitions
Physiology is the study of what
how an organism (or any one of its parts) functions
These are located on underside of a leaf and open for a plant to absorb CO2
Stomata
Process by which a seed develops into a seedling
germination
Photoperiodism is the response of an organism to what
changes in day length
roots exhibit what by growing away from light
negative phototrophism
A plant that lives one growing season
annual
What process involves water moving as a group up through xylem
cohesion
female gametophyte has how many cells
7
plants that need less than 12-14 hours of daylight
short day
another name for plant hormomes
phytohormones
Senescence is the process of aging leading to
death
what in soil creates nitrate
bacteria
a male gametophyte in plants is what part
pollen grain
abscission
what hormone is responsible for growth and senescence, including fruit ripening
ethylene
Quiescence is a shirt term resting state in seed where what is suspended
growth of embryo
When sugar travels from a source to a location in the plant, what is that location called
sink
Which part of the embryo will become the part of a plant that is responsible for photosynthesis
plumule
why does a burst of light at night affect short day plants
because they need longer period of uninterrupted darkness
when a plant grows straight up it is exhibiting what
gravitrophism
Apical dominance is the influence of the shoot tip to do what, resulting in reducing branching
inhibit growth of lateral buds
What is the process involving water evaporating through the stomata, when they are open
transpiration
2nd fertilization produces a triploid cell that becomes what
endosperm
what other element affects a plants growth besides daylight
temperature
Name the 5 major plant hormones
auxins, gibberellins, cytokinins, abscisic acid, ethylene