Roots, Stems, Leaves Unit Review- Botany

Front

This type of plant tissue makes up the "filler" or mass of the plant. It can have various uses, and much of the photosynthesis happens here.

Back

ground

Front

This type of plant tissue is used primarily to transport water, nutrients, and sap throughout the plant.

Back

vascular

Front

This type of plant tissue is where the growth occurs. Plants can have primary or lengthwise growth at the tips of the roots and stems, as well as secondary or lateral growth along the stem.

Back

meristematic

Front

This type of plant tissue serves as a primarily protective layer, and often includes a waxy cuticle, but can also serve as a point of gas exchange, especially in the leaves. This barrier tissue helps keep water, nutrients, and other materials entering and exiting the plant appropriately.

Back

dermal

Front

This type of vascular tissue carries water upward from the roots to the leaves where photosynthesis occurs.

Back

xylem

Front

This type of dermal tissue opens and closes to allow gases such as CO₂, O₂, and H₂0 to enter or leave the leaves.

Back

stomata

Front

This type of waxy dermal tissue can vary in thickness, but acts as a protective shield against harmful materials and impacts while also preventing the plant from losing too much water.

Back

cuticle

Front

This type of vascular tissue carries the sap created during photosynthesis throughout the plant, delivering glucose and other sugars to the various tissues that rely on it for energy and growth.

Back

phloem

Front

This waxy and waterproof layer of dermal tissue is located within the endodermis of the root. It's primary job is to prevent water from leeching back out into the soil once it enters the plant. This forces water to enter a one-way door, sending it upward where its only exit is through the stomata during transpiration.

Back

casparian strip

Front

This type of cell is controlled by sodium and potassium ions that drive osmosis in the cells. When water flushes into these cells they "plump" opening the stomata to allow gas exchange and transpiration. When the plant is experiencing drought conditions, they stay closed and prevent water loss.

Back

guard cell