Plant Structure and Function

Is It a Stem, Leaf, Root, Flower, Fruit or Seed? Fruit/Vegetable Part of Plant Broccoli Cabbage Carrot Celery Stalk Corn Kernel Garlic Onion Potato Tomato Zucchini

Is It a Stem, Leaf, Root, Flower, Fruit or Seed? Fruit/Vegetable Part of Plant Broccoli Flower Cabbage Carrot Root Celery Stalk Stem Corn Kernel Seed Garlic Onion Potato Tomato Fruit Zucchini

Plant Body Shoot system = leaves + stem Root system

Stoma = opening in the leaf for gas exchange, water evaporation Plant Body Leaf = blade + petiole Functions Exposes surface to sunlight Major site of photosynthesis Conserves water Provides for gas exchange Blade Petiole Stoma = opening in the leaf for gas exchange, water evaporation

Transports water and sugar to stem and roots Conserves water Photosynthesis Transports water and sugar to stem and roots Structures of the Leaf

Phloem transports sugar Plant Body Stem: Functions Holds leaves up to light Transports substances through vascular tissue Phloem transports sugar Xylem conducts water and minerals

Plant Body Root Functions Anchors plant in soil Takes up water and minerals from soil

Flowering Plant Reproduction Pollen grains Ovule Flower Meiosis Mitosis Flowers are modified leaves, specialized for reproduction. A complete flower has both male and female parts

Angiosperms are seed bearing & fruit producing or flowering plants.

Flowers Come in many different shapes, sizes and colors, but they all have the same functions: help plants reproduce. where seeds are made.

Flowers are the sexual reproductive organs of plants. All flowers, regardless of variety, have the function of seed formation and the production of more plants. Flowers contain both non-reproductive and reproductive structures.

The parts of a flower Sepals protect the bud until it opens. Petals attract insects. Stamens make pollen. Carpels grow into fruits which contain the seeds.

Male Parts

Anther This is the part of the stamen that produces and contains pollen.

Filament This is the fine hair-like stalk that the anther sits on top of.

Stamen This is the male part of the flower Stamen This is the male part of the flower. It is made up of the filament and anther, it is the pollen producing part of the plant. The number of stamen are usually the same as the number of petals

Female Parts

Stigma It is the sticky surface at the top of the pistil Stigma It is the sticky surface at the top of the pistil . It traps and holds pollen and starts the fertilization

Style The tube like structure that hold up the stigma.

Ovary The part of the plant, usually at the base of the flower, that has the seeds inside and turns into the fruit that we eat.

Ovule The structure of the flower that develops into a seed when fertilized. (eggs)

Carpe/Pistil The carpel is the female reproductive organ of a flower Carpe/Pistil The carpel is the female reproductive organ of a flower. It makes seeds. It is made up of the stigma, style and ovary. There may be more than one carpel in a flower.

Pollination Pollen is the powdery grains that contain male reproductive cells of most plants produced by anther. Flowering plants use the wind , insects bats, birds and mammals to transfer pollen.

When pollination occurs, pollen moves from the male parts to the female parts. Pollen grains land on the stigma and a tiny tube grows from it and down the style into the ovary.

The fertilized ovule becomes the seed and the ovary become the fruit