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CELLS. Groups. 1s- pg 30-31 Compare and contrast multi-cellular and uni-cellular. 2s- pg 32-33 How were cells discovered and explain the cell theory. 3s pg 34-35 Compare and contrast the major differences between plant and animal cells.

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groups
Groups
  • 1s- pg 30-31

Compare and contrast multi-cellular and uni-cellular.

  • 2s- pg 32-33

How were cells discovered and explain the cell theory.

  • 3s pg 34-35

Compare and contrast the major differences between plant and animal cells.

What feature typically makes plant cells boxy looking?

  • 4s Pg 38-39

Explain how multi-cellular organisms grow.

Why can a cell only get so large???

what is a cell

What is a cell?

* The smallest unit that can carry out the activities of life!

* The building blocks of all life!

jobs of cells
Jobs of cells
  • Even though they are tiny, each cell has everything it needs to survive and reproduce
  • Each part of the cell has a special job to do!

DNA

Nucleus

cell theory
Cell Theory
  • All living things are made of one or more cells.
  • Cells are the basic unit of living things.
  • All cells come from existing cells.
slide6
Unicellular

ONLY 1 cell that performs all jobs necessary to sustain the life of the cell

http://www.youtube.com/watch?v=gKNzzxuz6uk&NR=1

Multi-Cellular

Has 2 or more cells that have specialized jobs

http://www.youtube.com/watch?v=RaAM8qQcs6E

Elodea

Amoeba

animal cell
Animal cells are eukaryotes (have a nucleus)

Do NOT have a cell wall or chloroplast

Millions of different types

Can’t make their own food

Animal cell
plant cell
Have chloroplast and a cell wall

Plant cells are eukaryotes (have nucleus)

Plant cells make there own food through photosynthesis

Plant Cell
growing
Growing…
  • As multi-cellular organisms grow, the cells increase in number!
  • http://www.youtube.com/watch?v=rgLJrvoX_qo&feature=related
  • Chromosomes have all the information to divide
why so small
Why so small????

To stay a live, cells

  • Must take in oxygen
  • Absorb food
  • Release waste
big cell
Big Cell =
  • Need more food!

2. Too big to get rid of waste in time!

3. Big Pop! It’s not comin’ back!

http://www.youtube.com/watch?v=TdMIsCF_7p0&feature=related

journal
Journal….

1. Explain the difference between multi-cellular and unicellular (slide 6)

  • Describe the difference between a plant and an animal cell. (slide 7)
  • How do multi-cellular organisms grow? Why? (slide 10)
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