AP Biology Plant Vocabulary I Flashcards

Xylem
Terms Definitions
calyx
sepals, collectively
meristems
perpetually embryonic tissues
roots
Where are cytokinins created?
apical meristem
Where is auxin created?
ferns
simplest and most ancient tracheophytes, can transport water, minerals, and nutrients for reproduction. seedless
monocot
- one cotyledon
-scattered vascular bundles
-parallel leaf venation
-floral parts in 3s
-have fibrous roots
anther
the pollen-bearing portion of a stamen
plasmodesmata
What resource does the symplast pathway use?
phloem vessels
tissues that carry nutrients throughout the plant
gibberellins
plant hormone that stimulates growth of stems
Photoperiodism
a physiological response to day length, such as flowering in plants.
gymnosperm
tracheophytes that produce cones as seeds
xylem
The tube-shaped, nonliving portion of the vascular system in plants that carries water and minerals from the roots to the rest of the plant.
vascular bundles
- contain xylem and phloem
biennial
a plant requiring two growing seasons to complete its life cycle; vegetative growth occurs the first year and flowering and fruiting occur during the second year
protoplast
the cell contents exclusive of the cell wall
annuals
plants that complete their life cycle in a single year or less
stele
The central vascular cylinder in roots where xylem and phloem are located.
cytokinins
Stimulates cell division and growth of lateral buds. Causes dormant seeds to sprout.
Megaspore
A spore from a heterosporous plant species that develops into a female gametophyte.
cutin
waxy coating on leaves that helps prevent excess water loss from leaves
seta
The elongated stalk of a moss sporophyte.
micropyle
- opening in ovule where sperm enters
dehiscence
the opening of an anther, fruit or other structure to permit the escape of reproductive bodies
cork cells with suberin
What make up the periderm?
guard cells
regulate the opening and closing of stomata
fibrous root
consits of many similarly sized roots that form a dense, tangled mass
Apoplast
In plants, the continuum of cell walls plus the extracellular spaces.
2 types of seed plants
gymnosperms-cone bearing, and angiosperms-flowering plants
kingdom Viridiplantae
The broadest version of the plant kingdom that includes the members of the kingdom Streptophyta plus the chlorophytes (non-charophycean green algae).
epicotyl
- part of embryo that becomes the upper stem
abscisic acid
a plant hormone involved in leaf drop and seed dormancy
companion cells
phloem cells that lend support to the sieve tube elements
Accessory Fruit
A fruit, such as the pear or strawberry, that develops from a ripened ovary or ovaries but includes a significant portion derived from nonovarian tissue.
apical meristems
Embryonic plant tissue in the tips of roots and in the buds of shoots that supplies cells for the plant to grow in length.
cell walls
- walls in plants that support plant
- made o cellulose
conifers and dicots
In what are the xylem and phloem grouped in bundles which ring around a central pith region
alternation of generations
the life cycle of plants, switch off between haploid and diploid
In primitive plant divisions
Flagellated sperm need water to swim to the eggs.
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