9. Parts of a Plant
Flower: Where pollination and reproduction takes place.
Leaf: Where photosynthesis (food making) takes place.
Stem: Holds up the plant. Transports water , minerals, and nutrients to rest the plant.
Roots: Anchors plant by keeping it firmly in place. Absorbs water and minerals.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

10. ROOTS Root hairs: absorbs water and minerals
Grass is a fibrous root.
Carrots are taproots where starch is stored.
Root cap: pushes the root through the soil.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

11. Stem
Phloem Cells: tubes that carry nutrients from the leaves through the stem and down to the root.
Xylem Cells: connecting tubes that carry water and minerals from the soil.
Woody plants, like roses and trees, live for many years.
The stem is like the highway system of the plant, transporting minerals, nutrients, and water throughout the plant.
Nonwoody plants, like dandelions, live for only one season.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

12. Leaf
Petiole: an extension of the xylem and phloem tubes from the stem.
Veins: the transport system of the leaf.
Blade: the broad, flat part of the leaf.
Inside of a Leaf
Upper Epidermis: protects the leaf from drying off.
Cells: where chloroplasts exist and food making occurs
Lower Epidermis: protects the leaf and allows for the exchange of gases.
Chloroplasts: contains the chlorophyll, which gives the leaf color.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

13. Flower
Stigma: sticky part on the top of the pistil to which pollen grains stick
Petals: the colorful part of the flower.
Pistil: the female part of the flower .
Stamen: Male part that holds the pollen.
Ovule: Produces the female sex cells and becomes the seed.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

14. sunlight+ carbon dioxide+ water= sugar and oxygen
Photosynthesis:
sunlight+ carbon dioxide+ water= sugar and oxygen
Sugar=energy
sunlight
Sugar=energy
Carbon dioxide
Carbon dioxide
oxygen
water
oxygen
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

15. Pollination Roots Stem Leaf Flower Photosynthesis Pollination
Colorful petals attract insects and other animals to the nectar. Pollen rubs off of stamen onto insect or animal.
Insect or animal rubs pollen onto stigma.
Pollen travels down pistil and becomes fertilized in the ovary.
Ovary enlarges and becomes a fruit.
The fruit splits open and releases the seeds.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses

16. Plant Responses Roots Stem Leaf Flower Photosynthesis Pollination
Thigmotropism: plants response to touch, like the tendrils of a pea plant.
Phototropism: plants response to the need for sunlight.
Geotropism: plants response to gravity by growing toward the center of the earth.
Hydrotropism: plants response to the need for water.
Roots
Stem
Leaf
Flower
Photosynthesis
Pollination
Plant
Responses