Lab 7 Quiz Reveiw

Cotyledon

Leaf-like stucture which absorbs nutrients from the triploid endosperm and provides it to the embryonic plant. As soon as true leaves appear and begin photosynthesis, the cotyledons wither away.

Monocots

Have one cotyledon

Leaf veins are parallel

Leaf attaches by sheath (wraps around)

Roots are fibrous (no main root)

Floral organs in multiples of 3s

Dicots

Have two cotyledon

Leaf veins intersect

Leaf attaches by petiole (stem like before leaf)

Taproot (main big root)

Floral organs in multiples of 4 or 5

Epidermal Tissue System

Protects the outside of the plant

Guard cells, stomata, cuticle

Vascular Tissue System

Transport water and nutrients through the plant

Xylem and Phloem

Xylem

(tissue type) Transports water and is made up of tracheids and vessel elements

Phloem

(tissue type) transports photosynthetic products and is made up of companion cells and sieve-tube members

Ground Tissue System

Everything else

Parenchyma, Spongy mesophyll, palisade mesophyll, fibers, pith, cortex, vascular cambium

Monocot Stems

Vascular bundles scattered, no vascular cambium, no identifiable pith or cortex

Dicot Stems

Vascular bundles arranged in a ring with vascular cambium present, identifiable pith and cortex

Monocot Roots

Stele has a pith, vascular structures scattered within but arranged in a ring

Dicot Roots

Stele has no pith, vascular structures organized into X Shape

What structure is this?

Eudicot Stem or Dicot Stem

What structure is this?

Monocot Stem

What structure is this?

Dicot Root

What structure is this?

Monocot Root

What is the Stele?

Everything inside the endodermis

Label each element (lines from left to right, top to bottom)

Endodermis

Pericycle

Cortex

Phloem

Xylem

Label each line (left to right, top to bottom)

Endodermis

Phloem

Xylem

Cortex

Pith

Pith

REGION - center of the root (inside the ring of xylem)

Cortex

REGION - on the outside of the endodermis

Label each zone top to bottom

Zone of Maturation

Zone of Elongation

Zone of Cell Division

What is this structure?

Dicot Leaf; has both spongy and palisade mesophyll

What is this structure?

Monocot Leaf; Only has spongy mesophyll

Label the Dicot Structure (top to bottom)

Apical Meristem

Beginning Leaf

Terminal Bud

Stem

Leaf

Petiole

Lateral Bud

Internode

Cotyledon

Shoot System

Root System

Primary Root

Lateral Root

Root hairs

Root Cap

Guard Cells

Open and close on leaves to create the stomata

Stomata

Opening in the leaf epidermis which allows for gas exchange in photosynthetic tissues

Endodermis

In the roots, protects the plant from any harmful substances taken up by the roots

Vascular Bundles

Clusters fo xylem and phloem in close proximity to one another

Parenchyma

Store food, metabolic activities, photosynthesis, water balance and healing; in the pith and cortex of roots and stems

Epidermis

In dicot stems, small cells on the very outside of the stem

Vascular Cambium

A thin layer of cells between the phloem and xylem

Is celery monocot or dicot?

Dicot

What is this structure?

Dicot Stem

What is this structure?

Monocot Stem

What is this structure?

Dicot Root

What is this structure?

Monocot Root

Label the Parts of the Root

A. Root Cap

B. Cortex

C. Meristem

D. Epidermis

E. Root Hair

F. Pith

G. Zone of Cell Division

H. Zone of Elongation

I. Zone of Maturation

What kind of root is this and name the labels

Monocot Root

J. Phloem

K. Xylem