儿童英语_走进植物王国_plant_kingdom_part_one.ppt

1,The Plant Kingdom,PART ONE,2,The Plant Kingdom,,,4 General Characteristics:,3) They have chloroplasts,2) Plants make their own food by photosynthesis,1) Multi-celled organisms,organelle where photosynthesis takes place,chloroplasts-,they’re green because they have chlorophyll,the chemical that gives plants their green color,Chlorophyll-,traps light energy for photosynthesis,3,Chloroplast,4,Chloroplast,5,4 General Characteristics Cont’d,4) Plant cells have cell walls (animal cells do not),stiff cell walls give structure to each cell,also supports the plant,made of cellulose,have holes through which cells share cytoplasm & pass nutrients sugars, water, and hormones,cells walls,6,Photosynthesis:,releases oxygen,,Process in which plants use water, carbon dioxide, and energy from the sun to make food,Photosynthesis -,only occurs in the chloroplasts,Prefix photo means:,Light,Root word synthesis means:,to make,,7,What process is illustrated here?,6CO2 + 6H2O + light energy = C6H12O6 + 6O2,Photosynthesis,8,Products of Photosynthesis,9,10,2 Main Types of Plants,2) Nonvascular Plants,1) Vascular Plants,broken into 2 more subgroups called:,a) seedless plants,b) seed plants,not broken into subgroups,11,Vascular Plants,Vascular Plants-,plants that have tube-like cells in their roots, stems, & leaves that carry H2O and nutrients,Vascular comes from the Latin word “vasculum” which means “vessel”,roots, stems, and leaves of a plant are all called organs,they lose their leaves like a pet sheds,12,Vascular Plants: 3 organs and their jobs,Vascular Plant Organs:( roots, stems, & leaves),ROOTS-,anchors the plant into the ground,STEMS-,LEAVES-,place where all of the chloroplasts are located,takes in H2O & nutrients directly from the soil,carry water to all parts of the plant,holds the leaves up to the sunlight,13,Vascular Plants: 2 Types of Tubes,tube-like cells that carry water & dissolved minerals from the roots to the leaves,tube-like cells that carry food, which is made in the leaves, to all parts of the plant,each one has a specific function (job),a) xylem,b) phloem,vascular plants have 2 different types of tube-like structures inside them,think of tiny pipes.like a plumbing system,Xylem -,Phloem-,,14,Phloem,xylem,,,Take another,L k,Xylem & Phloem:,15,Xylem & Phloem,16,,Seedless Plants,,Seed Plants,,,Vascular Plants: Two Main Groups,1) seedless plants,Vascular plant that DO NOT have seeds,Ex: ferns,2) seed plants,Vascular plant that have seeds for reproduction,Ex: conifers & flowering plants,,17,Vascular Plants: Seedless (ferns),Ferns- seedless plants,usually grow in moist shady areas,they have adapted to grow in other environments:,stem stores the food & water,-aquatic (water),-dry climates,-tropical regions,water horn fern,tropical fern,typical fern,18,Vascular Plants: Seedless (ferns),The Fern Leaf,divided into tiny leaflets that look “feathery”,loses leaves at the end of each growing season,ferns are classified by their leaves,reproduce by spores formed on the underside of the leaf,The Fern Reproduction,the cases that hold the spores look like brown and orange spots,,19,Vascular Plants: Seedless (ferns),4 Parts of a Fern:,rhizoid-,an underground stem that anchored by the roots,roots-,anchor the fern,Frond-,full grown leaves that stand vertically,Fiddlehead-,tightly coiled new leaves,20,roots-,rhizoid-,Frond-,Fiddlehead-,Vascular Plants: Seedless (ferns),4 Parts of a Fern:,,,21,Vascular Plants: Seed Plants (conifers),Conifer-,2 main parts :,embryo-,An organism that contains a new young plant and stored food in its earliest stage of birth,seed-,A plant embryo that contains a new young plant and stored food surrounded by a protective coat,a type of seed plant that produces its seeds inside a cone,22,CONIFERS,23,Vascular Plants: Seed Plants (conifers),Evergreens-,they lose their leaves like a pet sheds,a type of conifer that keeps its leaves all year long,example: pine, spruce, & fir trees,some lose their leaves in the fall only such as:,larch, dawn redwood, & bald cypress,(not all at the same time),,2 Main Types of Plants,24,Vascular Plants: Seed Plants (conifers),5 important facts about conifers,1) ¾ of the worlds lumber is from conifers,2) provide almost all of the worlds paper,3) source of turpentine's, disinfectants, and fuel,4) Provides food for many animals,5) Provides shelter for many animals,25,Vascular Plants: Seed Plants (conifers),Directions: List 10 items that are made from conifers,Brainstorm,,26,1) List the 4 general characteristics of plants,2) Define photosynthesis.,3) In which organelle does photosynthesis take place?,4) What are the 3 main ingredients for photosynthesis?,5) List two function (job) of the cell wall in plants.,6) List the two main types of plants.,Directions: Answer the following questions,,Slide Questions Part One (slides 1-10),。