Plants Unit
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Transcript of Plants Unit
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Plants Unit
Monday 09/10/2012
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Goal for the Day
1. Review: Be able to list the major parts of plants and describe their functions.
2. Be able to draw the phylogenetic tree of plants.
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Question of the Day1. What are the major parts of a plant?
2. Do all plants have them?
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Question of the Day1. What are the major parts of a plant?
2. Do all plants have them?
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Phylogenetic Tree of Plants
• Shows the Evolutionary relationship between major plant groups.
• That is it shows the _________ over• _______ between the major plant groups.
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Phylogenetic Tree of Plants
Non-vascular plants (they don’t have vascular tissue)
TIME
TRUE ROOTSSTEMSLEAVESContain Vascular Tissue, so which groups of plants lack these?
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Phylogenetic Tree of Plants
• Each Green Dash on the tree indicates that every plant group above that line has that characteristic, and every plant group below that line lacks that characteristic.
• For example as you can see Liverworts, Hornworts, & Mosses all lack vascular tissue: They are non-vascular plants. However, Ferns, Gymnosperms & Angiosperms all have vascular tissue, and are therefore vascular plants.
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Roots Functions…
Absorbing water
Anchor the plant
Store Food (vegetables: potatoes, carrots, etc)
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Roots
Types…DRAW ME!
Taproot – example: carrot Fibrous root
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Leaves
Functions…
Photosynthesis – using light to make food
Stomata - Holes in the underside of leaves, which regulate the water loss in transpiration
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Stems
Functions…
Some photosynthesis
Support
Transport of nutrients through the
two Vascular Tissues
1. Phloem – carries food from the leaves to the roots (moves down)
2. Xylem – carries water from the roots to the leaves (moves up)
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What makes a fruit?
• Look at the picture again, and try to decide what characteristics make a fruit.
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What makes a fruit?
• Look at the picture again, and try to decide what characteristics make a fruit.
– It contains seeds, and also it COMES FROM A FLOWER!!!
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Scientific Method of Fruits
• Using what we learned today about plants write out the steps of the scientific method to answer the question: Is it a fruit?
– For the test look up online to see if your hypothesis is correct.
• Ex. IF it comes from a flower, THEN it is a fruit.
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Check on Germinating Seeds
• Make Observations & RECORD them in your observation table.– Is it dry?– Did it change color?– Does it smell?
• Make any measurements that seem applicable (i.e. size of crack in the seed)