plant transport system Flashcards
(21 cards)
transport
to take or carry from one place to another
phloem
tissue that allows food from the leaves to move down through the plant
xylem
a system of tubes that transport cells that circulates water and dissolved minerals throughout the plant (flows up)
cortex
the outer layer of the cerebrum (the cerebral cortex ), composed of folded gray matter and playing an important role in consciousness.
vascular system
assemblage of conducting tissues and associated supportive fibers.
shoot system/vascular bundle
is above ground and includes the organs such as leaves, buds, stems, flowers
stem
the main body or stalk of a plant or shrub, typically rising above ground but occasionally subterranean.
leaf
a flattened structure of a higher plant, typically green and bladelike, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration.
stoma
any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width that allows movement of gases in and out of the intercellular spaces
photosynthesis
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
chloroplast
in green plant cells) a plastic that contains chlorophyll and in which photosynthesis takes place.
chlorophyll
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
root
the part of a plant that attaches it to the ground or to a support, typically underground, conveying water and nourishment to the rest of the plant via numerous branches and fibers.
root system
The root system of a plant constantly provides the stems and leaves with water and dissolved minerals.
taproot
a straight tapering root growing vertically downward and forming the center from which subsidiary rootlets spring.
fibrous root
A fibrous root system is the opposite of a taproot system. It is usually formed by thin, moderately branching roots growing from the stem
absorb
take in or soak up (energy, or a liquid or other substance) by chemical or physical action, typically gradually
anchor
a heavy object attached to a rope or chain and used to moor a vessel to the sea bottom, typically one having a metal shank with a ring at one end for the rope and a pair of curved and/or barbed flukes at the other.
drought
a prolonged period of abnormally low rainfall; a shortage of water resulting from this.
adapt
make (something) suitable for a new use or purpose; modify.
phototropism
the orientation of a plant or other organism in response to light, either toward the source of light ( positive phototropism ) or away from it ( negative phototropism ).
