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Topic: Plants Aim: What are seed plants? Do Now: Describe something you have planted. Slide 2 What are some different types of plants? Plants without seedsPlants with seeds Slide 3 What are seed plants? Plants that are made of vascular tissue and produce seeds ANGIOSPERM: seeds have protective outer covering (flowering plants) GYMNOSPERM: seeds do not have protective outer covering (pine cones) Slide 4 What is vascular tissue? Tubes that transport water, food, and other materials throughout the body of a plant Two types of vascular tissue: 1.Xylem 2.Phloem Slide 5 What are Xylem? Vascular tissue that carries water and minerals UP the plant Materials travel from the roots leaves Consist of thick cell walls for support Slide 6 What are Phloem? Vascular tissue that carries food throughout the plant Food travels up and down Slide 7 How have plants adapted to live on land? 1.Support the leaves and other parts so they do not collapse 2.Obtain water and minerals 3.Transport food, water, minerals, and other materials throughout the plant 4.Prevent excess water loss to the environment 5.Get sperm and egg cells together for reproduction Slide 8 Topic: Plants Aim: What are roots and stems? Do Now: Fill in the table: VASCULAR TISSUEFUNCTION Slide 9 What are the parts of a plant? 1.ROOTS: Anchor plantsAnchor plants Absorb water and mineralsAbsorb water and minerals from the ground Store food for plantsStore food for plants Slide 10 What are the parts of a root? 1.Root hairs: increase surface area though which plants take in water and minerals from the soil 2.Epidermis: outermost layer 3.Cortex: stores food; carries water to the xylem 4.Root tip: tip of the root 5.Growth tissue: behind the root cap where new cells grow Slide 11 What are the parts of a plant? 2.STEMS: Contain xylem and phloemContain xylem and phloem Hold the leaves of a plant up in the air (to get sunlight)Hold the leaves of a plant up in the air (to get sunlight) Different sizes (trunk, branches, twigs)Different sizes (trunk, branches, twigs) Slide 12 STEMS Slide 13 How many different types of stems do plants have? HERBACEOUS PLANTS:HERBACEOUS PLANTS: Green and soft stems (sunflowers and grass)Green and soft stems (sunflowers and grass) WOODY STEMS:WOODY STEMS: Stems contain woodStems contain wood Layers of xylem that form when a stem grows thicker (roses and maple trees)Layers of xylem that form when a stem grows thicker (roses and maple trees) Slide 14 Topic: Plants Aim: How do leaves help the plant survive? Do Now: What is the purpose of root hair? Pick another part of the plant and explain its function using a complete sentence. Slide 15 What are the parts of a plant? 3.LEAVES: Site of photosynthesisSite of photosynthesis Chlorophyll is found in the plant cells of leavesChlorophyll is found in the plant cells of leaves Leaves contain two parts:Leaves contain two parts: Blade: thin, flat part of a leaf that is exposed to sunlightBlade: thin, flat part of a leaf that is exposed to sunlight Stalk: connects the leaf to the stemStalk: connects the leaf to the stem Slide 16 How many different types of leaves do plants have? SIMPLE LEAF:SIMPLE LEAF: Blade is in one pieceBlade is in one piece COMPOUND LEAF:COMPOUND LEAF: Blade is divided into leaf like parts (palms and roses)Blade is divided into leaf like parts (palms and roses) Slide 17 How do plants eat? Slide 18 What is photosynthesis? Process in which plants use sunlight (energy) to produce glucose (food)Process in which plants use sunlight (energy) to produce glucose (food) Form of autotrophic nutrition the ability to make foodForm of autotrophic nutrition the ability to make food Occurs in chloroplastsOccurs in chloroplasts Slide 19 What is the equation for photosynthesis? 6 CO 2 + 6 H 2 O C 6 H 12 O 6 + 6 O 2 Raw materials Products sunlight chlorophyll GLUCOSE Waste Into air Slide 20 What is the structure of a leaf? 1.Cuticle: waxy cover that prevents water loss 2.Epidermis: outer layer of cells 3.Mesophyll: a.Palisade layer long, thin cells tightly packed together; contains chloroplasts; WHERE MOST PHOTOSYNTHESIS OCCURS b.Spongy layer contains air spaces that allow carbon dioxide, oxygen, and water vapor to move around Slide 21 What is the structure of a leaf? 4.Stomates: openings in the epidermis that allow carbon dioxide in and water vapor and oxygen out of the plant 5.Guard cells: cells that surround and control the opening and closing of stomates 6.Veins: contain xylem and phloem Slide 22 Leaf Cross Section H. Phloem I. Vein C. Xylem K.K. D.D. E.E. F.F. G.G. A. Guard Cells B/J. Stomata Slide 23 Topic: Plants Aim: What is transpiration and tropism? Do Now: In what layer of the leaf does photosynthesis occur? Explain why it occurs in this layer? Slide 24 How does water leave the plant? TRANSPIRATION:TRANSPIRATION: The process in which water leaves the plant through the stomatesThe process in which water leaves the plant through the stomates Slide 25 What is Tropism? TROPISM: growth of plants toward, or away, from a stimulus PHOTOTROPISM: moves toward the light GRAVITROPISM: grow downward toward gravity phototropism gravitropism Slide 26 Gravitropism in motion. Grav01.rm Slide 27 Topic: Plants/Reproduction Aim: What is the structure of the flower? Do Now: Why do plants have flowers? Slide 28 Sexual Reproduction in Flowers: What is the structure of a flower? 1.Petals: colored leaves that attract insects for pollination 2.Sepals: green leaves used for protection Slide 29 What are the male parts of the flower? 3.Stamen: male reproductive organ a)Anther produces pollen (sperm) b)Filament stem holds up anther ANTHER STAMEN FILAMENT Slide 30 Topic: Plants/Reproduction Aim: How do plants spread their seeds? Do Now: What is the name of the male reproductive organ in the flower? What two structures make up the male reproductive organ? What does each structure do? Slide 31 What are the female parts of the flower? 3.Pistil: female reproductive organ a)Stigma sticky part that catches pollen b)Style long tube that brings pollen to ovary c)Ovary where eggs are produced and stored d)Ovules contain eggs PISTIL Slide 32 Label the flower and answer the questions! A B C D E F G H I Anther Petal Stigma Style Ovary Sepal Ovule Stem Filament 1.Structures A and I make up what structure? 2.Structures C, D, E, and G make up what structure? Stamen Pistil Slide 33 What is pollination? When pollen lands on the stigmaWhen pollen lands on the stigma Two types:Two types: Self pollination pollen from one flower lands on the stigma of the same flowerSelf pollination pollen from one flower lands on the stigma of the same flower Cross pollination pollen from one flower lands on the stigma of another flowerCross pollination pollen from one flower lands on the stigma of another flower A B A = SELF POLLINATION B = CROSS POLLINATION Slide 34 Topic: Plants/Reproduction Aim: How does a flower reproduce? Do Now: What is the name of the female reproductive organ in a flower? List the structures that make up the female reproductive organ and explain their functions. Slide 35 How does a flower reproduce? 1.Pollen lands on stigma (pollination) 2.Pollen tube grows down through the style and carries pollen to ovary 3.Sperm fertilizes egg in ovule a)Ovule develops into a seed that contains the embryo b)Ovary develops into fruit Slide 36 Ovary turns into the fruit, Ovule turns into the seed Seeds Slide 37 What are the parts of seeds? 1.Seed coat: protects the embryo 2.Embryo: will develop into the plant 3.Cotyledon: Stored food for the embryo Seed Coat Embryo Cotyledon Slide 38 Topic: Plants/Reproduction Aim: What can we learn by observing the parts of the flower? Do Now: Explain the function of each part of the seed. What parts of the flower develop into the fruit and seed?