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Do Now

Do Now. Take papers from the side counter Write down your homework . Cell theory reading and questions Take out your microscope lab to hand in On the top of the notes OR on a separate sheet of paper, answer the following: What is a theory? How is a theory different from a law?

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Do Now

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  1. Do Now • Take papers from the side counter • Write down your homework. Cell theory reading and questions • Take out your microscope lab to hand in • On the top of the notes OR on a separate sheet of paper, answer the following: • What is a theory? • How is a theory different from a law? • What are some theories you know of?

  2. Cell Theory

  3. What is the cell theory? • 1. Cells are the basic unit of structure and function of ALL living things • 2. All cells come from other cells and pass information through genetic code. • 3. All cells use the same chemicals to carry out the same reactions.

  4. Exceptions to the Cell Theory • Mitochondria and Chloroplasts • They contain genetic material but are NOT cells

  5. Exceptions to the Cell Theory • The first cell • If all cells come from other cells, where did the first cell come from???

  6. Exceptions to the Cell Theory • Viruses • They contain no genetic material, but they can “replicate” using the cells of the host

  7. Artistic Cell: Harvard How big is a cell?: Cells Alive

  8. Cell Theory 1. The cell is the ___________ _______ of structure and function of all living things 2. All cells __________ ________ other _______ and pass information on through _____________ information 3. All cells are made from the _______ _______________.

  9. Exceptions to Cell Theory • ________________ and ______________ • They contain ____________ material, but are not cells 2. The _________ _________ If all cells come _______ _________ ______, where did the first cell come from??? 3. ____________ They contain no genetic material but can replicate using infected cell

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