Download Cells Chapter 1 Notes List the objectives for Section 1: Organization

Cells Chapter 1 Notes List the objectives for Section 1: Organization of Life Basic to Complex Example(s) Define organism: unicellular organism
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multicellular organism 1. 2. 3. List the Objectives for Section 2 Cell History: 1665­ ______________________________________________________ ● British scientist ● Discovered cells when looking at a slice of cork under a microscope ● thought only plants had cells 1673­ ______________________________________________________ ● Dutch merchant ● saw animalcules­ “little animals” in pond scum through microscope ● observed animal cells ● 1st to see bacteria ● discovered that yeast is a unicellular organism 1838­ _______________________________________________________ ● German scientist ● found that all plants are made of cells 1839­ _______________________________________________________ ● German scientist ● found all animal tissues are made of cells ● wrote the first two parts of the cell theory 1858­ _______________________________________________________ ● German doctor ● found that cells develop from other cells Cell Theory (3 statements) 1. 2. 3. Section 2 (Continued) Why are cells so small? Surface­to­volume ratio Formula for Surface Area: Formula for Volume: The surface area of one side
How many sides?
The surface area of the cell
Volume of the cell
Surface­to­Volume ratio The surface area of one side The surface area of one side How many sides?
How many sides? The surface area of the cell
The surface area of the cell Volume of the cell
Volume of the cell Surface­to­Volume ratio
Surface­to­Volume ratio Circle the cube(s) with the greater surface­to­volume ratio? The benefits of being multicellular: 1. 2. Two Types of Cells Prokaryotic Cells Eukaryotic Cells Animal Cell (eukaryotic) Plant Cell (eukaryotic) Compare and contrast animal cells and plant cells Animal Plant