Chapter 36 NOTES

Chapter 36 NOTES - Chapter 36: Plant Form and Function...

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Chapter 36: Plant Form and Function Parenchyma Cells -thin unreinforced primary walls - ALIVE at maturity -TOTIPOTENT: can divide and develop into complete plant -must abundant and versatile FUNCTIONS: -photosynthesis - Storage of starch in roots and sugars in fruits - Transport of sugars and amino acids (phloem) - Wound healing -parenchyma cells divide to reestablish a connection so water and nutrients can continue to flow. - Asexual reproduction - Rhizome underground stem, sends down roots and sends up shoots - Stolon above ground stem - Callus parenchyma cells divide to sprout roots from callus at cut end of stem Collenchyma Cells -unevenly thick unreinforced primary walls -elongated cells -ALIVE at maturity FUNCTIONS: -support in young organs like stems and leaf stalks that are still elongating - strength and protection (bordering veins)
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Sclerenchyma Cells -primary and reinforced SECONDARY walls -cells occur singly, in small clusters or continuous masses -DEAD at maturity FUNCTIONS: -water transport
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This note was uploaded on 04/07/2011 for the course BIOL 104 taught by Professor Bray-speth during the Spring '11 term at Saint Louis.

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Chapter 36 NOTES - Chapter 36: Plant Form and Function...

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