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INTRODUCTION. I. Cell Biology. A. Definition. B. History of Cell Biology. 1. Microscope Development. a. Zacharias Janssen , 1595 first light microscope. b. Galileo , 1609 focusing device. c. Robert Hooke , 1665 coined “ Cellulae”.

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1 microscope development

INTRODUCTION

I. CellBiology

A. Definition

B.History of Cell Biology

1.Microscope Development


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a. Zacharias Janssen, 1595 first light microscope

b. Galileo, 1609 focusing device

c. Robert Hooke, 1665 coined “Cellulae”

d. Anton VanLeeuwenhoek, 1672 “Homunculus” and “Animalcules”


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e. Charles Spencer, 1850’s first compound scope

f. Max Knot & Ernst Ruska, 1933 first electron microscope


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2.Basics of Cell Theory


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a. Robert Dutrochet, 1824 plants made of cells

b. Robert Brown, 1824 Brownian motion & thenucleus

c. Theodor Schwann & Matthias Schleiden, 1839 Cell Theory

i. The cell is the basic unit in living organisms.

ii. The cell is the building block of organisms.


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d. J. Purkinji, 1840’s coined the term protoplasm

e. Rudolph Virchow, 1859 “Spontaneous Generation”

iii. Cells arise from preexisting cells.


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3.Cellular Control


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a. Karl VanNageli, 1846 plant cells derived from direct division of maternal cells

b. E. Strausburger & Walter Fleming, 1840’s directions for growth and division of cells contained in the nucleus

c. Gregor Mendel, 1860’s proposed a hereditary molecule was responsible for expression of traits in an organism

d. Frank Meischer, 1871 proposed nuclein material of nucleic acids


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d. Robert Altmann, 1889 purified nucleic acids into purine and pyrimidine bases DNA in all cells, while RNA variable

e. James Watson & Francis Crick, 1953 summarized research and built model of DNA


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II. Characteristics of Life

A. Highly Organized


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Molecules Biosphere


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Molecules Biosphere

Figure 1.3


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B. Transform Energy


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Bioenergetics


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Bioenergetics

Figure 1.4


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C. Reproduce


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Variationin Nature


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Variationin Nature


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Variationin Nature


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D. Grow & Develop


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Stages and Accomplishments


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Stages and Accomplishments


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Stages and Accomplishments


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E. Irritable & Adaptable


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Daily Adjustments vs. Population Changes


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Daily Adjustments vs. Population Changes


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F. Practice Homeostasis


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Balanced against Change


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Balanced against Change


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Negative vs. PositiveMechanisms


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Negative vs. PositiveMechanisms

Figure 1.12

Figure 1.11


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III. Types of Cells

A. Size Limits


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Surface Areavs.Volume Dilemma

Figure 6.2


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Surface Areavs.Volume Dilemma

Figure 6.2


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B. Prokaryotes

1.Size Limits


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2.Characteristics


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C. Eukaryotes

1.Size Limits


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2.Characteristics


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Figure 6.9

Figure 6.9


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Figure 6.9


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D. Viruses

1.Characteristics


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The parts == protein (capsid , landing gear, and injector) surrounding a nucleic acid core (genome= can be DNA or RNA)

Figure 18.4


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2.Strategies


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1. Lytic = inject, insert, take over, direct, and destroy

Figure 18.6


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2. Lysogenic = same except hide for a time then lytic

Figure 18.7


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D. Viroids & Prions

1.What?


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IV. Cell Biology Related Topics


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That’s all for now folks!!!!


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