Plant Structure

vascular meristem
vascular meristem
in a plant the lateral meristem that produces secondary xylem and phloem

endodermis
endodermis
The innermost layer of the cortex in plant roots; a cylinder one cell thick that forms the boundary between the cortex and the vascular cylinder.

histology
The study of tissues

vegetative organs
The parts of a plant (such as stems, roots, and leaves) that are not involved in reproduction

merismatic tissue
Areas of rapidly dividing cells

apical meristem
apical meristem
Embryonic plant tissue in the tips of roots and in the buds of shoots that supplies cells for the plant to grow in length.

lateral meristem
lateral meristem
Growth region of a plant that provides secondary growth, increase in girth

intercalary meristem
intercalary meristem
meristem near nodes at the intervals of the plant allowing a quick growth

parenchyma tissue
parenchyma tissue
Type of structural tissue found in roots, stems, leaves, and fruits that makes and stores food

collenchyma tissue
collenchyma tissue
a tissue bordering the veins of leaves and making up the “strings” in celery

sclerenchyma tissue
sclerenchyma tissue
dead cells with thick walls that have lignin and provide strength and support

fibers
slender cells that occur in strands and are commonly found in roots, stems, leaves and fruits.

sclereids
far stubbier than fibers and often branched, these are another typical sclerenchyma cell that strengthens hard seed coats such as peach pits, and make pear flesh gritty

vascular bundle
A strand of vascular tissues (both xylem and phloem) in a plant stem.

tap root
tap root
A single thick root that grown straight down. It can reach water that is deep in the ground. Store food for the plant.

fibrous root
fibrous root
part of a root system in which roots branch to such an extent that no single root grows larger than the rest

adventitious root
adventitious root
root arising above the ground from stems or leaves

haustoria
haustoria
parasitic roots that parasitize a host plant

root cap
root cap
a structure that covers the tip of a root, protecting the root from injury

casparian strip
casparian strip
waterproof strip that surrounds plant endodermal cells and is involved in the one-way passage of materials into the vascular cylinder in plant roots.

pericycle
pericycle
The outermost layer of the vascular cylinder of a root, where lateral roots originate.

pith
pith
ground tissue that is internal to the vascular tissue

lateral roots
lateral roots
roots growing from the primary root

stem node
stem node
The area of a plant’s stem from which the leaves grow

terminal bud
terminal bud
bud at tip of a stem responsible for terminal growth, contains the tip of the shoot

bud scales
bud scales
modified leaves protecting the terminal bud

axillary bud
axillary bud
buds with embrionic shoots that can give rise to new branches or flowers and are located between the petiole and the stem

lenticles
lenticles
structures on the twig allowing gas exchange

stolons
stolons
modified stem that is growing beneath the surface in different directions

tubers
tubers
Swollen, fleshy, underground stem. Stores food. Ex. Irish potatop

thorn
thorn
modified stem found in honey locust

simple leaf
simple leaf
only one blade

compound leaf
compound leaf
many blades for one leaf

pinnately compound leaf
pinnately compound leaf
a compound leaf with leaflets attached like vanes of a feather to an elongated rachis

palmately compound leaf
palmately compound leaf
leaflets from a single point

phyllotaxy
arrangement of leaves on a stem

opposite leaf attachment
opposite leaf attachment
two leaves per node

alternate leaf attachment
alternate leaf attachment
one leaf per node

whorled leaf attachment
whorled leaf attachment
three or more leaves per node

leaf mesophyll
leaf mesophyll
ground tissue of a leaf

palisade mesophyll
palisade mesophyll
in plants, the layer of vertically elongated cells that contains chloroplasts, that is located beneath the upper epidermis of leaves, and that participates in photosynthesis

spongy mesophyll
spongy mesophyll
inside a leaf, the tissue that is made up of loosely arranged parenchyma cells that contain chloroplasts and are surrounded by air spaces that promote the diffusion of oxygen, carbon dioxide, and water throughout the leaf

guard cells
guard cells
The two cells that flank the stomatal pore and regulate the opening and closing of the pore.

onion root
onion root

monocot root
monocot root

eudicot root
eudicot root

monocot root
monocot root

eudicot root
eudicot root

1. Epidermis
2. Cortex
3. Endodermis
4. Xylem
5. Phloem
1. Epidermis
2. Cortex
3. Endodermis
4. Xylem
5. Phloem
Name the layers of a monocot root

root branch, pericycle
root branch, pericycle
what is this structure?
where does it originate from?

woody stem
woody stem

eudicot stem
eudicot stem

monocot stem
monocot stem

bark
All tissues external to the vascular cambium, consisting mainly of the secondary phloem and layers of periderm (cork, cork cambium in case of woody plants)

eudicot leaf epidermis
eudicot leaf epidermis

monocot leaf epidermis
monocot leaf epidermis

parenchyma
parenchyma
tissue type

collenchyma
collenchyma
tissue type

sclerenchyma
sclerenchyma
tissue type

Tagged In :

Get help with your homework


image
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page

Sarah from studyhippoHi there, would you like to get such a paper? How about receiving a customized one?

Check it out