Plant Structure Flashcards
(25 cards)
Plants are composed of
tissues; organs and organ systems
2 organ system of plant
roots and shoots
Roots are
below ground
shoots are
above ground (stems, leaves, flowers)
Eudicots have
two seed leaves (vascular bundles organized in rings), veins are like a maple leaf
Monocots have
1 seed leaf (vascular bundles throughout), straight veins, like a celery
Ground tissue system
functions for photosynthesis, and support
Vasuclar tissue system
distributes absorbed water
Dermal tissue
cover and protects surfaces
Meristem
where plants arise from; undifferentiated cells
Apical Meristem
length
Lateral Meristem
thickness
Parenchyma
primary growth of plant
Mesophyll
consists of parenchyma cells that contain chloroplasts
Meristematic cells are
unipotent
terminal buds
main zones of primary growth in shoots
lateral buds
axillary buds; form side branches, leaves, flowers
root hairs
fine extension of root epidermis that increase the surface area for absorption
cohesion/tension theory
water is pulled by evaporation from leaves so water can go high up to trees
stomata
lots of water: guard cells open stomata
lack of water: guard cells collapse closing stomata
tubers
potato type
xylem carries
water and ions through plant
phloem conducts
sugars and other organic solutes
cork cambium
gives rise to periderm
