Structure of plants Vascular plants- have roots, stems and leaves ( ) Leaves are adapted for photosynthesis- broad leaves have - Broad leafed Thin leafed.

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Presentation transcript:

Structure of plants Vascular plants- have roots, stems and leaves ( ) Leaves are adapted for photosynthesis- broad leaves have - Broad leafed Thin leafed

Structure of a leaf Epidermis- Cuticle- top of epidermis, Stomata- openings found – Allow for gas exchange C02 in (photosynthesis- O2 out (photosynthesis- H2O vapor out (transpiration- )

Guard cells- regulate opening & closing of stomate- Palisade Layer- below epidermis- Spongy Layer- below palisade, gas exchange, - mbAUghttp:// mbAUg

Vascular Tissue Veins- Xylem- carries - Phloem- carries – Roots- absorb water and nutrients Root hairs-

Vascular Tissue

Biology Lab Review - Vegetative Parts of Flowering Plants Part 2 - Roots & Stem - KEY Photos by Dr. Rob Bowker, Glendale Community College, Glendale, Arizona (These photos are protected by copright and may not be reproduced without written permission.) This is a cross section through part of a plant: Is it root or stem? Is it monocot or dicot? How do you tell? scattered vascular bundles Name structure A. vascular bundle Name tissue B. ground tissue The two photos on the left are taken from stem cross sections: Name the structure shown in each photo. vascular bundle Name tissue A. xylem What is the function of tissue A? transport water & minerals Name tissue B. phloem What is the function of tissue B? transport organic food What type of cells are shown at C? fibers What is the function of these cells? support Back to Bio 108 Lab Review contents Back to Bio 182 Lab Review contents This is a cross section through part of a plant: Is it root or stem? Is it monocot or dicot? How do you tell? scattered vascular bundles throughout Name structure A. vascular bundle Name tissue B. ground tissue Example Corn Monocot Stem

This is a cross section through part of a plant: Is it root or stem? Is it monocot or dicot? How do you tell? ring of vascular bundles Name tissue A. epidermis Name structure B. vascular bundle C and D are both ground tissue. Specifically, C is pith and D is cortex. Example Sunflower Dicot Stem

Chemical Regulation Auxin- Plant hormone, causes - Phototropism- plant bends toward light, auxin – Geotropism- roots grow down, Apical Meristem- region of growth (lengthwise)-