Plants Animals Fungi Bacteria Protists 1 11/12/2012 Who Disco - - PDF document

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Plants Animals Fungi Bacteria Protists 1 11/12/2012 Who Disco - - PDF document

11/12/2012 What the Cell ??? ??? ??? ??? ??? ??? Set 2: Bell Ringer #3 List 5 things made of cells The Cell l Theory ry Cells are the basic units of life All living things are made up of cells. New cells are made from existing


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SLIDE 1

11/12/2012 1

Cell ??? ??? the What ??? ??? ??? ???

Set 2: Bell Ringer #3

List 5 things made of cells

The Cell l Theory ry

Cells are the basic units of life All living things are made up of cells. New cells are made from existing cells.

This is theory applie ies to : bacteria ia, , multic ticellular ar organ anis isms, , unicellular ar organ anis isms, , plants ts, , animal imals – anyth thin ing living!

What t th the Cell?! l?!

Plants Animals Fungi Bacteria Protists

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11/12/2012 2

Who Disco scove vere red d the Cell Theory?

  • ry?
  • Looked at cork & named cells

1665 – Robert Hooke

  • Looked at living cells & improved microscope

1674 – Anton van Leeuwenhoek

  • Looked at plants & determined that plants were made of cells

1838 – Matthias Schleiden

  • Looked at animals & determined that animals were made of cells

1839 – Theodor Schwann

  • Stated that all cells come from other living cells

1855 – Rudolph Virchow

How Did They y See e the Cell? l?

They used microscopes!

 Micro means ________.  A microscope is a tool we use to see small

  • bjects.

SMALL

What t th the Cell?! l?!

I am a heart cell! I am a skin cell! I am a prison cell!

The ____ & _____ of a cell relate to its function.

size shape

Cell l Speci ciali liza zati tion – Divi visi sion

  • n of Labor
  • r
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All cells have 4 things in common:

Surrounded by a barrier = Cell Membrane Cytoplasm Ribosomes At some time, they contain DNA

Molecule that carries genetic info

What t th the Cell?! l?!

Organelles

What t is an Organell anelle? e?

Internal structure Enclosed in a membrane

 Thin layer of cover or lining

Specific function (job) “Little Organ”

Nucleus

What t is a N Nucleu leus? s?

Large structure Enclosed in a membrane

 Thin layer of cover or lining

Contains the cell’s DNA Controls many cell activities

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SLIDE 4

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Types s of Ce Cells ls

Prokaryote

No nucleus. Genetic material NOT contained in a nucleus Generally smaller & simpler Bacteria

Eukaryote

Nucleus that contains genetic material Generally larger & more complex. Have membrane-bound

  • rganelles.

Plants, Animals, Fungi, & Protists

Pro = No

Types s of Ce Cells ls Venn n Diagr gram am of Cell l Types es

Prokaryotes

  • No nucleus
  • Smaller
  • Simpler

Eukaryotes

  • Nucleus
  • Larger
  • Complex
  • Membrane-bound
  • rganelles
  • Cell membrane
  • DNA
  • Carry out a

variety of activities

  • Cytoplasm
  • Ribosomes