FBS 10 LAB 3

Epidermis

a single layer of protective tissue of the

entire root system

Cortex

originates from the ground tissue

and is mostly made of parenchyma

cells

Endodermis

innermost layer of the cortex;

single row of cells; cells are

rectangular in shape; side walls

thickened with suberin -- Casparian

strips (in exodermis)

Casparian Strips

Pericycle/ vascular cylinder/stele

Xylem

transports water and

dissolved substances from the

roots to the stem and leaves; main

strengthening tissue of the root.

Phloem

transports organic

substances such as carbohydrates

from the leaves to the root.

Monocot
Dicot

Monocot
dicot

Both dicot

monocot

dicot

A. Apical meristem
B. Leaf primordium

C. Protoderm
D. Procambium
E. Ground meristem

A. Epidermis
B. Cortex
C. Sclerenchyma
D. Pith

E. Xylem
F. Phloem
G. Cambium

Sclerenchyma
Phloem
Intrafascicular cambium
xylem
pith

A. Epidermis
B. Cortex
C. Vascular bundles
D. Ground tissues

Sclerenchyma
Companion cells
Phloem
Sieve Plate
Sieve tube
Vessel
Lacuna
Tracheid
Bundle sheath

Rhizomes

like those of ginger, are horizontal stems

that grow underground

Tubers

including potatoes, are the swollen ends of

rhizomes specialized for food storage; eyes are

arranged in a spiral pattern around the potato are

clusters of buds that mark the nodes

Stolons

grown on the surface of the ground, typically

moves horizontally

Bulb

like onions, are

vertical, underground

shoots consisting mostly of

the swollen bases/layers of

leaves that store food.

Corm

are short, vertical

stems with underground solid

tissues that serve as storage

organs.

Cladophylls

Leaves of these plants with

photosynthetic stems are often

decreased in size or are modified

into having other functions such as

spines.

Tendrils

a thin, spirally-coiling stem that

attaches a plant to its support

Thorns

a sharp, protective spine of a plant

A. Vascular Cambium
B. Cork Cambium
C. Secondary xylem
D. Bark

Dicots

Hardwoods (wood of ____) 

Gymnosperm

Softwood (wood of_______)