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Published byNicholas Gibbs Modified over 9 years ago
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Plant Review and Adaptations
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Do you see what I see? Write down as many parts of the plant cell can you label?
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Chloroplast
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Vacuole
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Cell Membrane
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Cell Wall
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Nucleus
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Fibrous roots – prevent erosion Taproots – reach water deep in the ground
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Releasing O 2 + H 2 O Transpiration
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Leaves: Monocot vs. Dicot Monocot – parallel veins Dicot – branched veins
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Label the flower
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Did we get it?
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Leaf A B C D E F
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A: vein B: petiole C: margin D: blade E: axillary bud F: stem
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Life cycle of a plant
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Cross section of leaf
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cuticle Upper edidermis Pallisade mesophyll Spongy mesophyll Guard Cell Stoma Vein (Xylem and Phloem) Lower Epidermis
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Pollination Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower.
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Fertilization Pollen grains germinate on the stigma, growing down the style to reach an ovule. Fertilized ovules develop into seeds. The carpel enlarges to form the flesh of the fruit and to protect the ovary.
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Fruit or Veggies? With a partner, classify the following: CucumbersPotato TomatoesStrawberry CarrotsRadish OrangeSquash PumpkinGreen peppers
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“Plant behavior”
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Hormones Auxin – causes cell growth towards the sun Cytokinins – cause plants to branch and seeds to sprout Gibberellins – cause plants to increase in size Ethylene – causes fruits to ripen
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Tropisms Gravitropism – roots grow down, stems grow up Phototropism – growth towards light Thigmotropism – response to touch
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Others… Photoperiodism – plants response to periods of light (day and night) Winter Dormancy – plants get ready for the winter (stop photosynthesis)
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Plant Adaptations… In spite of being rooted in the ground, plants need to have strategies that allow them the necessary “skills” to survive.
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TRUE or FALSE After each statement, move to the right side on the room for true or the left side for false. Ready…
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