vegetative plant anatomy -...
TRANSCRIPT
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.
Vegetative Plant Anatomy
All parts non-reproductive
Vegetative Anatomy
• Non-reproductive plant structures
• Anatomy vs. morphology – Anatomy = Internal
structures – Morphology = External
structures
A Little Morphology
• Vegetative morphology for Angiosperms (flowering plants) – Monocots vs.
Dicots
Zea Mays (Corn) is a Monocot
Quercus agrifolia (Coast Live Oak) is a Dicot
Stem Anatomy
• Vary between Monocots and Dicots • Structures
– Xylem • Water transport
– Phloem • Sugar transport
– Pith • Starch and sugar storage
Monocot Stem Cross-sectionVascular Bundles
Phloem
Xylem
Monocots lack a pith region in the stem
Dicot Stem Cross-sectionXylem
Phloem
Root Anatomy
• Positions vary between monocots and dicots
• Structures – Xylem
• Water transport – Phloem
• Sugar transport – Pith
• Starch and sugar storage
Monocot Root Cross-section Dicot Root Cross-section
Vascular Bundles
Compound Light Microscopes
To see where no eye has seen before!
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
Microscope Parts and Use• Eyepiece • Body tube
Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
• Stage
Microscope Parts and Use• Eyepiece • Body tube• Objectives • Stage clips
• Course Adjustment knob • Fine adjustment knob • Power switch • Base
• Arm • Aperture
• Stage
• Diaphragm
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