Ch_04_Lecture_1[1]

Ch_04_Lecture_1[1] - Chapter 4 A Tour of the Cell 1 Cells...

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1 Chapter 4 A Tour of the Cell 0
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2 Cells The Basic Units of Life
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3
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4 Checkpoint Cells a . It houses DNA. b . It packages material for transport. c . It regulates materials moving into the cell. d . It transports cell products. e . none of the above What is the function of the nucleus?
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5 Checkpoint Cells Mitosis is the process of ________. a . protein synthesis b . homeostasis c . nuclear division d . cell-cell communication e . all of the above
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6 Checkpoint Cells What is the function of the cell membrane? a . intercellular joining b . cell-cell recognition c . transport d . form a cellular boundary e . all of the above
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7 ? The Discovery of Cells Empty cell walls of dead plant tissue; no internal structure – walls originally made by the living cells they surrounded English microscopist Robert Hooke (1635- 1702), in 1665: Question: why can cork stoppers hold air in a bottle? Examined a piece of cork Described “chambers” in cork – “cells” (cellulae)
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8 B. See “animalcules” in pond water Anton van Leeuwenhoek: During 1665-1675, the first to: A. Describe living single cells; results checked & confirmed by Hooke C. Describe various forms of bacteria: tooth scrapings & water in which pepper was soaked
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This note was uploaded on 04/07/2008 for the course BIO 100 taught by Professor Zhongma during the Spring '08 term at Truman State.

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Ch_04_Lecture_1[1] - Chapter 4 A Tour of the Cell 1 Cells...

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