Biology - Plant Basics

Front 1

Cuticle

Back 1

waxy covering around the outside of a plant that prevents water passage.

Front 2

Stomata

Back 2

openings at the leaf surface of plants that allow gas exchange.

Front 3

Where does most of the elongation of the stems occur?

Back 3

internodes

Front 4

Internode

Back 4

the part of a plant stem between two of the nodes

Front 5

Bud

Back 5

an undeveloped or embryonic shoot and normally occurs in the axil of a leaf or at the tip of the stem.

Front 6

Stipule

Back 6

a small leaflike appendage to a leaf, typically borne in pairs at the base of the leaf stalk.

Front 7

Blade

Back 7

the broad thin part of a leaf apart from the stalk [the blade may be called a "lamina" in many technical references].

Front 8

Petiole

Back 8

the stalk that joins a leaf to a stem; leafstalk.

Front 9

Calyx

Back 9

the sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.

Front 10

Sepal

Back 10

each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.

Front 11

Petal

Back 11

each of the segments of the corolla of a flower, which are modified leaves and are typically colored.

Front 12

Corolla

Back 12

the petals of a flower, typically forming a whorl within the sepals and enclosing the reproductive organs.

Front 13

Stamen

Back 13

the male fertilizing organ of a flower, typically consisting of a pollen-containing anther and a filament.

Front 14

Pistil

Back 14

the female organs of a flower, comprising the stigma, style, and ovary.