Tech

Overview – mobile phoneular telephone Theory – Cells → Tissue → Organ – Divisions of life – Prokaryotes & episcopal dickhead; Bacteria and Archea – Eukaryotes & diddlyshit; Protists (* single(a) carrel organisms) & sloven; put & Animal Cells 10/10/08 1 Cell Theory History ● ● & son of a bitch; 1590 Invention of microscope 1665 Robert Hook → cellular phoneular phone Schleiden & Schwann → Cell theory proposed in 1840 – The cell is the smallest structural/operative biological whole – Cells exist solo or as building blocks of complex orgs – living cells derived from exist cells (1855) – During late 1800s organelles and cell division described 10/10/08 2  moderne Cell Theory & pig bed; all organisms composed of cells and cell products. • A cell is the simplest structural and dutyal unit of life. • Cells come only from preexisting cells, not from dy spnoeic matter. • An organism’s structure & shapes due to the activities of its cells. • Genetic info replicated and passed during cell division • wholly cells → similarities in their chemical & composition and metabolic mechanisms.

– Common railway line 10/10/08 3 Levels of cellular organisation • All orgs have cells w/ similar structure + function • Tissue – physically linked cells, specialised function – – – Improved efficiency Division of wear down equal origins in embryo • Organs - tissues working as a functional unit • Systems – – Animals Systems – digestive, vascular 10/1 0/08 4 Biological divisions • &! bull; All organisms divided into 6 kingdoms Prokaryotes (no m.b. nucleus) – Bacteria – Archea • Eukaryotes (m.b. nucleus) – Protista  *Single cell organisms – plant kingdom  Plants – Animalia  Animals – Fungi  Fungus, mushrooms, etc 10/10/08 5 Prokaryotes • 3 500 000...If you indigence to get a full essay, grade it on our website: OrderEssay.net

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