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Parenchyma Cells

Cells found in the leaf that have thin cell walls and large vacuoles for photosynthesis, food storage and respiration

Collenchyma Cells

Cells found in the stem that have thick and stretchy cell walls to help create support

Sclerenchyma Cells

Cells found in fibers that have thick cell walls to create a system of support

Dermal Tissue

Tissue that makes up the epidermis in most leaves. It helps the plant prevent dehydration by absorbing H20

Vascular Tissue

Tissue that creates the veins of the plants in the center of roots, stems and leaves. They transport water and nutrients and provide a network of support throughout the plant. There are two types: Xylem and Phloem

Ground Tissue

Tissue that makes up most of the roots. Their main function is storage and support.

Meristematic TIssue

Tissue that consists of dividing cells. It is found wherever there is new structure forming in a plant.

Roots

Two functions: 1) Support the plant 2) Provide water and food to the plant

Leaves

Used to gather light and accomplish photosynthesis. Gases are also exchanged in the leaves in a process called Transpiration.

Epidermis

Single layer of cells that cover the lower and upper sides of the leaf. They are covered with a cuticle on the outer wall. There are many stomata perforating the lower surface.

Functions of the Epidermis

Protects the internal issue from injury

Function of the cuticle

Prevents water loss

Mesophyll

Made up green tissue of the leaf that consists of thin-walled cells containing chloroplasts, this tissue forms the bulk of the leaf. It is differentiated into the Palisade Parenchyma and the Spongy Parenchyma. There is a system of air spaces which communicate with the air chambers behind the stomata.

Palisade Parenchyma

Consists of thin-walled cells which are usually cylindrical in shape. It is responsible for photosynthesis because they contain chloroplasts

Spongy Mesophyll

Ball-shaped with large intercellular spaces. The function of it allows for the interchange of gases

Veins

Consists of branched vascular bundles. These vascular bundles include Xylem and Phloem

Xylem

Conducts water and dissolved ions to the mesophyll tissue

Phloem

Conducts organic food such as glucose from the mesophyll to other parts of the plant

Stomata

Communicates with the air chambers in the spongy mesophyll. Formed by a pair of guard cells.

Guard Cells

Have the ability to open and close the stoma

Function of the stomata

THe stomata are responsible for the interchange of gases for respiration and photosynthesis. The stomata allow for the loss of excess water in the form of water vapor, which also allows for cooling

Sepal

The outer most ring that covers and protects the flower bud

Stigma

Stick tip to catch pollen at the end of the style

Filament

Thin stalk-like structure that holds the anther

Peduncle

This bulk-like structure connects the flower to the stem

Ovary

THe protective "organ" inside a flower that bears many seeds or "female" eggs

Petal

Modified leaves usually on the second ring of a flower. Can be different colors

Style

Narrow structure that is found on the pistil that connects the ovary

Anther

Stalk at the top of the stamen that makes and holds pollen or "male sperm"

Corolla

All the petals together are referred to as this

Stamen

The male reproductive "organ" of a flower

PIstil

The female reproductive "organs" of a flower

Cross-pollination

When seeds from one plant 'cross' to another plant

Self Pollination

When a plant's seed drops into its own reproductive organs

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