Copyright of for more videos,visit us. Full of ingredients to make your child a genius. “Don’t make me read, make me understand “
Copyright of for more videos,visit us. Parts of the plant and their functions
Copyright of for more videos,visit us. Importance of plants Without plants life on earth would not exist
Copyright of for more videos,visit us. Plants Primary source of food for people and animals Produce oxygen Help to keep us cool Renew the air
Copyright of for more videos,visit us. Plants Slow wind speed Provide a home for wildlife Beautify surroundings Perfume the air Furnish building materials and fuel
Copyright of for more videos,visit us. Parts of a plant Four basic parts –l–leaves –s–stems –r–roots –f–flowers
Copyright of for more videos,visit us. Leaves The food factory of the plant Produce the food used by the plant or stored for later use
Copyright of for more videos,visit us. Shape and size of leaves Vary among plants Used for identification of plants
Copyright of for more videos,visit us. Leaf arrangement Alternate Opposite Whorled –A–Arranged in a circle around the stem
Copyright of for more videos,visit us. External leaf structure Petiole - leaf stalk Leaf blade (leaf) –H–Has veins –F–Forms structural framework of the leaf
Copyright of for more videos,visit us. Midrib Large center vein from which all other leaf veins extend
Copyright of for more videos,visit us. Margins Edges of leaves Assists in plant identification
Copyright of for more videos,visit us. Internal leaf structure Epidermis –S–Skin of the leaf –S–Single layer of cells –P–Protects leaf from loss of too much moisture
Copyright of for more videos,visit us. Guard Cells Open and close the small pore on the underside of the leaf
Copyright of for more videos,visit us. Stomata Allow the plant to breathe and transpire –G–Give off moisture
Copyright of for more videos,visit us. Chloroplasts Contain chlorophyll Located inside the food making cells
Copyright of for more videos,visit us. Photosynthesis Process by which CO2 and H2O in the presence of light are converted to sugar and oxygen
Copyright of for more videos,visit us. Food Manufactured in the leaves moves downward through the stem to the roots –U–Used by the plant –S–Stored in stem or root and leaf in the form of sugar, starch or protein.
Copyright of for more videos,visit us. Respiration Plants respire 24 hours a day Consume O2 and give off CO2 Plants produce more O2 through ps. Than they consume during respiration and growth.
Copyright of for more videos,visit us. Stems Have two main functions –M–Movement of water and minerals from the roots upward and movement of manufactured food down
Copyright of for more videos,visit us. Stem functions Support of leaves and reproductive structures used for food storage and reproduction of plants involving cuttings Green stems manufacture food just as leaves do
Copyright of for more videos,visit us. Roots Usually underground Functions: –A–Anchor plant and hold upright –A–Absorb water and minerals form soil and conduct to stem –S–Store food, & propagation
Copyright of for more videos,visit us. Root Structure Internal –S–Similar to stems –O–Older roots have xylem, phloem and cambian
Copyright of for more videos,visit us. External –R–Root cap Produces continuous supply of new cells Protects roots as they push through soil
Copyright of for more videos,visit us. Structure Root hairs –A–Absorb moisture and minerals
Copyright of for more videos,visit us. Type of root systems Fibrous-grasses –E–Easier transplanting –S–Shorter, smaller, more compact Lap root-carrot –L–Longer and fewer roots
Copyright of for more videos,visit us. Flowers, Fruits, and Seeds Pollination- color of flower attracts insects to fertilize flower –B–Beginning of fruit and seed formation Fruits and seed are attractive to birds who eat and spread seeds. –R–Reproduces plant –S–Some seeds carried on animals coats
Copyright of for more videos,visit us. Parts of the Flower Differ in size, shape, and color, some basic parts Sepal –G–Green leaf-like part, covers and protects bud before opening
Copyright of for more videos,visit us. Petals Are actually leaves Usually bright colors to attract pollinating insects.
Copyright of for more videos,visit us. Parts of the Flower Stamens –M–Male part of flower –H–Has two parts Filament-stalk
Copyright of for more videos,visit us. Anther Anther- sac-like structure on top of filament, contains pollen
Copyright of for more videos,visit us. Parts of the Flower Pistil - female part in the center of flower has three parts
Copyright of for more videos,visit us. Pistil Three parts Stigma - top - sticky Style - tube leading from stigma to ovary
Copyright of for more videos,visit us. Ovary Egg cells develop here Grows to become fruit or seed coat
Copyright of for more videos,visit us. Types of Flowers Complete –C–Contains 4 main parts
Copyright of for more videos,visit us. Incomplete Does not have all 4 main parts
Copyright of for more videos,visit us. Perfect Has stamens and pistils
Copyright of for more videos,visit us. Imperfect lacks stamens or pistils
Copyright of for more videos,visit us. Thanks Submitted by Astha Priya St. johns Public School
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Copyright of for more videos,visit us. Full of ingredients to make your child a genius. “Don’t make me read, make me understand “