Hrincevich_CH_5_student_outline

Hrincevich_CH_5_student_outline - Cell Structure and...

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Cell Structure and Function Chapter 5
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Mid 1600s – Robert Hooke observed and described cork cells Late 1600s – Antony van Leeuwenhoek observed sperm, microorganisms 1820s – Robert Brown observed and named nucleus in plant cells Early Discoveries
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Cell Theory (several individuals contributed) 1) Every organism is composed of one or more cells 2) Cell is the smallest unit of life retaining the properties of life 3) Continuity of life arises from growth and division of single cells
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Smallest unit of life Can survive on its own or has potential to do so Highly organized for metabolism Senses and responds to environment Has potential to reproduce Cell
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frog embryo most eukaryotic cells mitochondrion most bacteria virus proteins diameter of DNA double helix chicken egg adult human tallest trees atoms 1 centimeter (cm) = 1/100 m 1 millimeter (mm) = 1/1000 m Units of measurement: 1 meter (m) = 39.37 inches Diameter visible with conventional electron microscope visible with special electron microscopes visible with llight microscope visible with unaided human eye 1 micrometer (µm) = 1/1,000,000 m 1 nanometer (nm) = 1/1,000,000,000 m 100 µm 10 µm 1 µm 100 nm 10 nm 1 nm 0.1 nm 1 mm 1 cm 10 cm 100 m 10 m 1 m
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frog embryo chicken egg adult human tallest trees Diameter visible with unaided human eye 1 mm 1 cm 10 cm 100 m 10 m 1 m visible with light microscope
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most eukaryotic cells mitochondrion most bacteria virus proteins diameter of DNA double helix atoms 1 centimeter (cm) = 1/100 m 1 millimeter (mm) = 1/1000 m Units of measurement: 1 meter (m) = 39.37 inches visible with conventional electron microscope visible with special electron microscopes visible with llight microscope 1 micrometer (µm) = 1/1,000,000 m 1 nanometer (nm) = 1/1,000,000,000 m 100 µm 10 µm 1 µm 100 nm 10 nm 1 nm 0.1 nm
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This note was uploaded on 02/25/2010 for the course BIOL 1001 taught by Professor Minor during the Fall '08 term at LSU.

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Hrincevich_CH_5_student_outline - Cell Structure and...

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