How Plants Are Classified
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Transcript of How Plants Are Classified
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How Plants Are Classified6.2-3: Compare the characteristic structures of various
groups of plants (including vascular or nonvascular, seed or spore-producing, flowering or cone-bearing, and
monocot or dicot).
Taxonomy level: 2.6-B Understand Conceptual Knowledge
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Essential Question
What are the main ways scientists classify plants?
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Video Information
• Promethean Board Activity
vascular_nonvascular_plants.flp
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Classification
Plants are commonly classified into two major groups based on their internal structures. These two
groups are vascular and nonvascular.
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Vascular Plants• This is the largest group in the Plant Kingdom. • These plants have a well-developed system for
transporting water and food; therefore, they have true roots, stems, and leaves.
• Vascular plants have tube-like structures that provide support and help circulate water and food throughout the plant.
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Vascular Plant Structures
• Xylem transport water and minerals from the roots to the rest of the plant.
• Phloem transport food from the leaves to the rest of the plant.
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Vascular Plants• Examples include
trees and many shrubs with woody stems that grow very tall and grasses, dandelions, and tomato plants with soft herbaceous stems.
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Have you heard Buzz Lightyear’s new nickname?
It’s herbaceous….because he’s not Woody!
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Nonvascular Plants
• These plants do not have a well-developed system for transporting water and food; therefore, do not have true roots, stems, or leaves.
• They must obtain nutrients directly from the environment and distribute it from cell to cell throughout the plant.
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Nonvascular Plants
• This usually results in these plants being very small in size.
• Examples include mosses, liverworts, and hornworts.
Answer the EQ.
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Celery and Carrot Lab
• What happened to the color of the celery leaves? What vascular structure is responsible for this change?
• Look at the end of the celery. Do you see any tubes that are also colored? What is the name of these vascular structures?
• Create a detailed drawing of the end of the celery. Label the structure you identified above.
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Lab continued
• Now look at the cross-section of the carrot. Do you see the tubes?
• Draw a detailed sketch of the carrot. Which tubes are the phloem and which are the xylem? Use the Internet to research and then label the structures correctly on your sketch.
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Definitions to know
• Use your book or notes to define each key term.
1. Vascular2. Non-vascular3. Xylem4. Phloem5. Woody6. Herbaceous