Week Three Lecture and Lab Overview
Week Three Lecture and Lab Overview Bot 105
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This 2 page Class Notes was uploaded by Kiana Encinas on Saturday September 12, 2015. The Class Notes belongs to Bot 105 at Humboldt State University taught by Frank Shaughnessy in Summer 2015. Since its upload, it has received 69 views. For similar materials see General Botany in Botany at Humboldt State University.
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Date Created: 09/12/15
Botany Week Three Review 99 lecture and 910 lab Form and Function of Emryophyte Cells Learning Goals 1 Know what cell type and tissue means 2 Know the difference between the primary and secondary cell walls 3 Understand suberization and lignification 4 Explain how a dead cell can still function Cell Wall Vacuole unique to plant cells humans do not have them Fibril threads made up of cellulose in the cell wall 0 Primary cell wall the layer deposited during cell expansion Outside the secondary wall Lignin After cellulose lignin is the most abundant plant polymer not all secondary walls contain lignin but it is one of the most important parts of the secondary wall 0 Suberin fatty wax material found in the cell wall that prevents water leakage o A cell type with a primary wall is usually alive and flexible at maturity Some cell types have a secondary wall as well The secondary wall is located inside of the primary wall 0 All cells with a secondary wall will be dead at maturity but they re still functional Subarin and lignin are usually added to the second wall Lab Objective L v Be able to recognize morphology and anatomy of Embryphytes Know the function of leaves stems roots and Embryophyte tissues and cells Have the ability to identify modified leaves roots and stems and explain what its new function is 53 Leaf light absorption Stem gives support and height to the plants granting access to sunlight Root anchors and absorbs What we did during lab took first lab quiz made cross sections or wet slides and viewed leaf material stem material potato tuber young leaf celery and pear under a compound microscope and took another mock quiz Misc Fun Facts from the week 0 Plants continue to grow throughout their entire life All growth originates at the meristem Apical meristems are located at the tips of roots and stems Besides a source of food plans can be used as medicine cosmetics tea or for aromatherapy
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