Cell Theory SC.912.L.14.1 Describe the scientific theory of cells (cell theory), and relate the history of its discovery to the process of science. To.

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Presentation transcript:

Cell Theory SC.912.L.14.1 Describe the scientific theory of cells (cell theory), and relate the history of its discovery to the process of science. To the Teacher: Source: http://1.bp.blogspot.com/-zc8QRuqqz-Q/U5sLdZXLsvI/AAAAAAAAACs/c1nRqQwFWCc/s1600/cell+theory.png

What do I need to know? Explain the three stipulations of the cell theory and how continuous investigations and new scientific information influenced the development of the cell theory To the Teacher:

Cell Theory The cell theory is composed of 3 statements developed after numerous observations of cells by several different scientists. All living things are composed of one or more cells The cell is the basic unit of structure and function of living things. New cells arise from existing cells. To the Teacher: Source: http://1.bp.blogspot.com/-zc8QRuqqz-Q/U5sLdZXLsvI/AAAAAAAAACs/c1nRqQwFWCc/s1600/cell+theory.png

Cell Theory Guiding Questions: What invention allowed for the development of the cell theory? How did the cell theory develop over time? How many scientists contributed to the development of the cell theory? Did the scientists always agree with each other? To the Teacher:

Show What You Know The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge? A. All living things are made of cells. B. All cells come from other preexisting cells. C. Cells form through spontaneous generation D. Cells are the basic structural and functional units of life. To the Teacher:

Show What You Know All cells regardless of which type they are have a few things in common: DNA, cytoplasm and cell membrane. These three together form a perfect combination and make something that is alive, yet, individually (the cytoplasm alone, or the DNA alone), they are just a group of chemicals. What tenet or premise of the cell theory does this finding support? A. All modern cells come from preexisting cells. B. All cells contain genetic material (DNA). C. Every living thing is made up of one or more cells. D. The cell is the basic unit of structure and function of life. To the Teacher:

Show What You Know To help patients replenish bodily fluids quickly during an illness, doctors need to understand how cells behave in their environment. Doctors have confidence in what they know about how cells behave because? A. Large medical institutions have conducted their own experiments justifying the cell theory. B. What we know about cell theory has been published in reputable journals. C. Cell theory has been tested, refined, and observed to be true over hundreds of years. D. The basics of cell theory have not changed much since the original experiments. To the Teacher:

Show What You Know Which invention from the 17th century allowed the development of modern cell theory? A. Scanning electron microscope B. Computers C. X-ray D. Light microscope To the Teacher: