plant form & function part 2

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plant and function

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NaSc1

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1. Dicot Roses, cacti, peas, beans, cotton, carrots

2. MonocotPalm trees, lilies, orchids, corn, pineapple,

sugarcane

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1) Stem

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Position leaves for maximum photosynthesis Supports reproductive structures Provides pathway for the transport of water

minerals and food between leaves and roots Protects leaves from many predators Bark is formed to protect from predators and

physical trauma

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Cladophyll Stolons Corm Rhizomes Tubers

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http://www.twh.org.ph/oscommerce/catalog/product_info.php?products_id=102

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Compound Leaf Simple Leaf

http://waynesword.palomar.edu/termlf1.htm

http://visual.merriam-webster.com/plants-gardening/plants/leaf/compound-leaves.php

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Main photosynthetic organ Usually flat to maximize the surface area

exposed to sunlight Extension of vascular tissue system Provide pressure “pull” that forces water

through the plant’s body; loss of water through pores in leaves

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http://www.britannica.com/EBchecked/media/374/Common-leaf-morphologies10

Taproot System Primary Root (taproot) Lateral roots Trees

Fibrous Root System Monocotyledons Adventitious roots Lateral Roots Grasses

TAPROOT

FIBROUS

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Anchor the plant to the soil

Absorbing water and minerals

Food storage

*Root Hairs

etc.usf.edu/clipart/46500/46522/46522_root_hairs.htm

www.psmicrographs.co.uk/marjoram-...-vulgare-science-image/00135c

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Rootcap-living thimble-like parenchyma

cells-protects the apical meristems-aids in penetration-controlling the response of the

root to gravity (gravitopism) Columella Mucigel

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Aerial Roots Prop Roots Pneumatophores Contractile roots Storage Roots

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Raven, P.H. , Evert, R.F. and Eichhorn, S.E. 1999. Biology of Plants 6th Ed. W.H. Freeman and Co. Worth Publishers, USA. 944 pp.

Nabors, M.W. 2004. Botany an Introductory Approach. Pearson Education South Asia Pte.Ltd. 626pp.

Diola, A., Dy., D., Ilano, A., Inoc, D.C., Oquinena, K., Parilla, R., Tambuli, A. and Yee, J. 2010. Natural Science 1 (Biological Sciences) Lecture Notes. University of San carlos, 126 pp.

Starr, C. 2003. Biology: Concepts and Applications, 5th ed. Brooks/Cole, USA. 799 pp.

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