PMB 3005W Quiz 1
apical meristem - ANS-Embryonic plant tissue in the tips of roots and in the buds of
shoots that supplies cells for the plant to grow in length.
Meristem - ANS-Plant tissue that remains embryonic as long as the plant lives, allowing
for indeterminate growth.
Secondary growth in plants - ANS-growth in diameter from lateral meristems
tissue system - ANS-collections of differentiated cells
dermal tissue system - ANS-tissue system in plants that covers the plant and acts as an
interface between the plant and the environment - protects the plant from harsh
environmental conditions it also actively participates in the uptake of water and nutrients
and excretion of material.
Vascular system in plants - ANS-tissue system - network of tubes that transports water,
sugar, and minerals. Made up of the xylem and phloem
xylem - ANS-vascular tissue that carries water and other minerals upward from the
roots to every part of a plant
phloem - ANS-The vascular tissue through which food (organic compounds like sugar
and amino acids) moves in some plants
ground tissue system - ANS-Plant tissues that are neither vascular nor dermal, fulfilling
a variety of functions, such as storage, photosynthesis, and support. Includes the pith
and cortex
Angiosperms - ANS-flowering plants
dicots - ANS-Flowering plant whose embryos have 2 cotyledons.
monocot - ANS-An angiosperm that has only one seed leaf (cotyledon)
cotyledon - ANS-first leaf or first pair of leaves produced by the embryo of a seed plant
, branched, parallel - ANS-Leaves of dicots have _______ veins, monocots tend to have
__________ veins
epicotyl - ANS-Part of the embryo in a seed that becomes the upper part of the stem
and leaves
hypocotyl - ANS-Part of the developing embryo that will become the lower part of the
stem and roots
radicle (embryonic root) - ANS-the part of the plant embryo that is the first organ to
emerge from the seed - forms the roots
dicots - ANS-In ______, you have a main root called the tap root with lateral roots that
branch off.
monocots - ANS-In _____, there is a network of fibrous roots that all emerge from the
stem; called adventitious roots
leaf, stem, and root - ANS-The plant body can be divided into what 3 major organs?
Cortex (plants) - ANS-Specialized region in a plant root or stem for storage and support;
*stores food*
pith - ANS-ground tissue internal to the vascular tissue - innermost part of the stem
Epidermis (plant) - ANS-A single layer of cells that forms the outer layer of leaves and
stems
vascular bundle - ANS-plant stem structure that contains xylem and phloem tissue
Cuticle - ANS-a waxy non-living layer that minimizes water loss in leaves
-xylem is oriented towards the pith (internal)
-phloem is oriented towards the cortex (outer) - ANS-location of xylem and phloem in a
stem
root cap - ANS-a structure that covers the tip of a root, protecting the root from injury
and helps root grow down into the soil
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