Plant Anatomy Physiology Parts of a Flower Foldable

Plant Anatomy & Physiology

Parts of a Flower Foldable 1. 2. 3. Color your flower Fold your sheet in half and cut the flaps on the 1 st sheet only! Open your foldable and label it like this: Flower Structure Flower Functions Leaf Structure Leaf Functions Stem Structure Stem Functions Root Structure Root Functions

The Four Basic Parts of Plants n Flowers n Leaves n Stems n Roots

Leaves Function n Functions n n Make food through photosynthesis Site of gas exchange Respiration n Photosynthesis n n Store food

Leaf Structure-Tissues of the Leaf (Epidermis) n Cuticle n n Waxy substance that covers the leaves & stems Waterproof layer that keeps water in plants

Leaf Structure-Tissues of the Leaf (Epidermis) n Stomata n n Openings in the epidermis mainly located on the underside of leaves Exchange of gases

Leaf Structure-Tissues of the Leaf (Epidermis) n Guard Cells n n Two cells located on each side of stomata Open and closes stomata

Stems Function n Functions n Movement of materials Water & minerals from roots to leaves n Manufactured food from leaves to roots n n n Support leaves & reproductive structures Food storage

Stem Structure n Xylem n n Phloem n n The tissue that transports water & nutrients up from roots to stems & leaves. Tissue that transports food down from leaves to roots. Cambium n Thin, green, actively growing tissue located between bark & wood and produces all new stems cells.

Roots Function n Functions n n Anchor the plant Absorb water & minerals Store food Propagate or reproduce some plants

Roots Structure n Root Cap n Indicates growth of new cells.

Roots Structure n Root Hairs n n n Tiny one celled hairlike extensions of the epidermal cells located near the tips of roots. Increase surface area. Absorb water & minerals.

Flowers Function n n n Contain the sexual organs for the plant. Produces fruit, which protects, nourishes and carries seeds. Attracts insects for pollination.

Flower Structure n Sepals n n n Outer covering of the flower bud. Protects the stamens and pistils when flower is in bud stage. Collectively known as the calyx.

Flower Structure n Petals n n Brightly colored Protects stamen & pistils. Attracts pollinating insects. Collectively called the corolla.

Flower Structure (Stamen) n n Within the petals are the flower’s male and female reproductive parts. Male reproductive part n Anther n n Produces pollen Filament n Supports the anther

Flower Structure (Pistil) n Female reproductive part n Ovary n n n Enlarged portion at base of pistil Produces ovules which develop into seeds Stigma n Holds the pollen grains

Imperfect Flower n n Male or female reproductive organs not, but not both. Example: n n A male flower has sepals, petals, and stamen, but no pistils. A female flower has sepals, petals, and pistils, but no stamen.

Perfect Flowers n Contains both male and female reproductive structures.

Importance of Flowers Important in florist & nursery businesses. n Many plants are grown solely for their flowers. n Plants have flowers to attract insects for pollination, but people grow them for beauty & economic value. n