vegetative plant anatomy -...
TRANSCRIPT
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Vegetative Plant Anatomy
• What is a cotyledon? • What are the differences between monocots
and dicots? • Label the stem anatomy of a monocot. • Label the stem anatomy of a dicot. • Label the root anatomy of a monocot. • Label the root anatomy of a dicot.
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Vegetative Plant Anatomy
All parts non-reproductive
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Vegetative Anatomy
• Non-reproductive plant structures
• Anatomy vs. morphology – Anatomy = Internal
structures – Morphology = External
structures
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A Little Morphology
• Vegetative morphology for Angiosperms (flowering plants) – Monocots vs.
Dicots
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Zea Mays (Corn) is a Monocot
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Quercus agrifolia (Coast Live Oak) is a Dicot
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Stem Anatomy
• Vary between Monocots and Dicots • Structures
– Xylem • Water transport
– Phloem • Sugar transport
– Pith • Starch and sugar storage
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Monocot Stem Cross-sectionVascular Bundles
Phloem
Xylem
Monocots lack a pith region in the stem
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Dicot Stem Cross-sectionXylem
Phloem
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Root Anatomy
• Positions vary between monocots and dicots
• Structures – Xylem
• Water transport – Phloem
• Sugar transport – Pith
• Starch and sugar storage
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Monocot Root Cross-section Dicot Root Cross-section
Vascular Bundles
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Compound Light Microscopes
To see where no eye has seen before!
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Light Microscopes
• Basic observation tool of the biologist
• Can observe objects that are to small for the naked eye to see
• Come in a variety of shapes and sizes
• All use light to illuminate the subject
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Microscope Parts and Use• Eyepiece • Body tube
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
• Stage
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
• Stage
• Diaphragm
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Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
• Stage
• Light source
• Diaphragm
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