Plant Systems Flashcards
Dermal tissue
OUTER LAYER
- plant epidermis
- tissue that surrounds the primary body of vascular plants (ex. roots, stems, leaves, flowers, fruits)
Vascular tissue
TRANSPORT
- comprised of the xylem and phloem (transport systems)
- stem has vascular tissue; acts like our blood vessels
Ground tissue
LEFTOVER
- tissues that are neither dermal nor vascular
- stores food and provides physical support to the plant
Root system
BELOW GROUND
- anchors the plant in the soil
- collects water + nutrients to transport to the stem
- stores food
Shoot system
ABOVE GROUND
- produces sugar through photosynthesis
- carries out reproduction
Leaf
PHOTOSYNTHESIS (6CO2 + 6H2O -> C6H12O6 + 6O2)
- provides surface area
- have stomata and guard cells
Stomata
- on leaves
- small openings where CO2 enters while O2 + H2O exits
- controlled by guard cells (opening + closing)
Flower
- primary function: reproduce
- some plants reproduce by budding, wind, fragmentation, bees, etc.
Stamen: male organ (long filament with an anther which produces pollen, aka flower sperm)
Pistil: female organ (style, stigma, ovary which produces eggs/female sex cells) - pollen + egg = seed
Stem
- provides physical support + transportation of water, nutrients, and sugar
- has vascular tissue
- XYLEM
- PHLOEM
Xylem
- transports water + minerals UP from roots to leaves (4 sugar)
Phloem
- transports sugar from leaves to rest of plant (after photosynthesis)
Meristematic cells
- capable of cell division
- undifferentiated and keep dividing until they get differentiates and lose their ability to divide
Chloroplast
- contains thylakoids (solar panels that collect light energy) and chlorophyll (green pigment that converts light energy to glucose)
