MILLER AND LEVINE BIOLOGY POWERPOINTS

1 Miller and also Levine biology 7.1 – 7.2Overview to Cells Miller and Levine biology 7.1 – 7.2

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2 How perform we know cells exist?In 1665 Robert Hooke used a very early microscope to examine a item of cork (plant material).

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At the exact same time, Anton van Leeuwenhoek supplied a solitary lens microscope to study pond water. Where did the term cells come from?
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3 Cell Theory Following the discovery of cells, scientists agreed that both plants and pets are made of cells and are the smallest units of life. This cause a cornerstone of biology known as “Cell Theory”.

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Cell Theory states: All living things are consisted of of cells. Cells are the fundamental unit of structure and also attribute of living points. New cells are created from existing cells.
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4 How carry out we research cells? Light microscopes

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5 How carry out we examine cells? Electron microscopes

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6 Two significant cell categoriesProkaryotic Bacteria Eukaryotic Animal cells Plant cells

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7 What are the differences?Prokaryotes Eukaryotes Usually smaller sized and less complicated Typically bigger and also more complicated DO NOT separate hereditary material DO separate their hereditary in nucleus in nucleus

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8 Why are cells small?

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9 How are cells organized?Cell membrane/wall Cytoplasm Nucleus Within the cell are assorted organelles which you will review about in chapter 7.2 (Pg. 196)

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