2Is It a Stem, Leaf, Root, Flower, Fruit or Seed? FoodPart of PlantBroccoliCabbageCarrotCelery StalkCorn KernelGarlicOnionPotatoTomatoZucchini
3Is It a Stem, Leaf, Root, Flower, Fruit or Seed? FoodPart of PlantBroccoliFlowerCabbageCarrotRootCelery StalkStemCorn KernelSeedGarlicOnionPotatoTomatoFruitZucchini
4Shoot system = leaves + stem Root system Plant BodyShoot system = leaves + stem Root system
5Three Types of Plant Tissues Vascular TissueTransportSupportGround TissueSynthesis of SugarsStorageDermal TissueProtection
6Stoma = opening in the leaf for gas exchange, water evaporation Plant BodyLeaf = blade + petioleFunctionsExposes surface to sunlight Major site of photosynthesis Conserves water Provides for gas exchangeBladePetioleStoma = opening in the leaf for gas exchange, water evaporation
7Transports water and sugar to stem and roots Conserves waterPhotosynthesisTransports water and sugar to stem and rootsStructures of the Leaf
8Phloem transports sugar Plant BodyStem: series of nodes and internodesFunctionsHolds leaves up to lightTransports substances through vascular tissuePhloem transports sugarXylem conducts waterand minerals
9Takes up water and minerals from soil Plant BodyRootFunctionsAnchors plant in soilTakes up water and minerals from soil
10Flowering Plant Reproduction Pollen grainsOvuleFlowerMeiosisMitosisFlowers are modified leaves, specialized for reproduction.
11Angiosperms are seed bearing & fruit producing or flowering plants.
12FlowersCome in many different shapes, sizes and colors, but they all have the same functions:help plants reproduce.where seeds are made.
13Flowers 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.
14The Parts of a FlowerMost flowers have four parts:sepals,petals,stamens,carpels.
15The parts of a flowerSepals protect the bud until it opens.Petals attract insects.Stamens make pollen.Carpels grow into fruits which contain the seeds.
16Male PartsAnther This is the part of the stamen that produces and contains pollen. It is usually on top of a long stalk that looks like a fine hair. When the grains are fully grown, the anther splits open.Draw and label this sketch in your notes.
17Male PartsFilament This is the fine hair-like stalk that the anther sits on top of. The part of a stamen that supports the anther of a flower (the stalk of the stamen).Draw and label this sketch in your notes.
18Male PartsStamen 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 is usually the same as the number of petals.Draw and label this sketch in your notes.
19Female Parts Stigma The sticky surface at the top of the pistil. It traps and holds the pollen and starts the fertilization process.
20Female PartsStyleThe tube-like structure that holds up the stigma.
21Female PartsOvaryThe part of a plant, usually at the base of the flower, that has the seeds inside and turns into the fruit that we eat.
22Female PartsOvuleThe structure in a flower that develops into a seed when fertilized.(eggs)
23Female PartsCarpel/Pistil The carpel is the female reproductive organ of a flower. It makes the seeds. It is made up of the stigma, style, and ovary. There may be more than one carpel in a flower.
24Pollen - powdery grains that contain the male reproductive cells of most plants. Pollen is produced by the anthers.
25PollinationFlowering plants use the wind, insects, bats, birds and mammals to transfer pollen.
26When 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.
27The fertilized ovule becomes the seed and the ovary becomes the fruit.
28Pollen 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
29. 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.
30Pollen 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.
31A Complete Flower Has Both Male and Female Parts Produces pollenStamenAntherAttracts pollinatorFilamentPistilStigmaPetalStyleSepalOvaryEncloses and Protects BudFemale partProduces egg
32Pollination and Fertilization in a Flower Mature Pollen GrainSperm CellsTube Cell Nucleus1. pollen grains land on stigma2. pollen tubes grow down stigma to ovary3B: Fusion of 2nd sperm + two polar nucleiStigma3. double fertilizationStyleSperm3A: Fusion of sperm + eggPollination and Fertilization in a FlowerOvulePolar nucleiOvaryEgg
33Development of Fruit and Seeds From Flower Parts Provides nutritionEndospermTriploidEndospermCellFresh FruitOvarySeed CoatIntegumentDiploid ZygoteEmbryo (new plant)Seed = embryo + stored food + seed coatFruit = ovary wall, mechanism for seed dispersal