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ZveřejnilLuboš Bezucha
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Tercie 2014 Výukový materiál GE 02 - 39 Tvůrce: Mgr. Šárka Vopěnková Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR EMBRYOGENESIS
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heredity : descendants similar to their parents this feature allows the biological species retain characteristics for several generations EMBRYOGENESIS
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moment of fusion of sperm and egg > continuous division of fertilized cell first into two, four, eight, sixteen until a cluster of cells forms = morula the fourth day a cavity is formed in the cluster
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after fertilization: the first three weeks vesicle is nestled in the wall of the uterus from cell parts are formed protective coverings germinal disc is formed from another part of the cell the hardest stage of development: differentiation of cells and tissues by hereditary information EMBRYOGENESIS
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cells divide and differentiate again tissues are formed examples of tissues: muscular nervous epithelium binders body liquids organs originate from tissues organ systems from organs EMBRYOGENESIS
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there are three basic layers of cells = three embryonic leaves outer embryonic leave = ectoderm inner embryonic leave = entoderm third embryonic leave = mesoderm EMBRYOGENESIS
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from ectoderm are formed: epithelium skin nails hair nervous system brain EMBRYOGENESIS
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from ectoderm are formed: organs and glands of the digestive system liver pancreas trachea bronchi alveoli EMBRYOGENESIS
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from mesoderm are formed: skeleton muscles blood vessels blood heart reproductive system EMBRYOGENESIS
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DESCRIBE THE PICTURE WORKSHEET
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HANČOVÁ, Hana. Biologie v kostce 1: Obecná biologie. Mikrobiologie. Botanika. Mykologie. Ekologie. Genetika. 2. vyd. Havlíčkův Brod: Fragment, 1999, 112 s. ISBN 80-720- 0340-2. DOBRORUKA, Luděk J. Přírodopis: Obecná biologie. Mikrobiologie. Botanika. Mykologie. Ekologie. Genetika. 1. vyd. Praha: Scientia, 2000, 159 s. ISBN 80-718-3167-0. SOURCES
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