Download Chapter 6: The Cell

Chapter 6: The Cell
Microscopes:
Hooke:


1665: Looked at a thin slice of cork using microscope.
_____________________________________________________
o Dead plant cells
Leeuwenhoek:

1700: _____________________________________ with high-

quality lenses to observe ___________________________, such as
those in pond water
Called these organisms “______________________”
Amici:

1827: __________________________________ in microscope
Types of Microscopes:
Light Microscope:


____________ Cells
Magnifies objects up to ___________________________________

Viewing objects ________________________________________

Not enough to see _______________________________________
Electron Microscope:

___________ Cells

_____________________________________________________

Magnify objects ________________________________________

Reveals _______________________________________________
o Scanning Electron Microscope (SEM):

___________________________________________
o Transmission Electron Microscope (TEM):

___________________________________________
Micrograph:

A ___________________________________________________

Used for _____________________________ seen through
______________________ microscopes
The Cell:
Schleiden:

1837

Botanist

Established that the _____________________________________
_____________________________________________________
Schwann:

1839

Zoologist

Established that the _____________________________________
_____________________________________________________
Virchow:

1855

Established that ________________________________________
_____________________________________________________
The Cell Theory
1. Cells are the ________________________________________ of all
living organisms

Schleiden and Schwann
2. Cells arise only from _______________________________________
by _______________

Virchow
Cells Differ By:
1. ______________
2. ______________—related to function
3. ___________________

Cells are _______________________________ organization
and have same _____________________________________

Determination of ___________________ is the ultimate aim
of ___________________________
By 1900’s:

Many important cell parts had been described and named:

Plasma Membrane (Cell Membrane):
o ___________________________
o Controls what __________________________ cell

Nucleus:
o ___________________________ of cell
o Contains ______________

Nucleolus:
o Produces _____________
o Produces _____________________________

Vacuole:
o ________________________

Chloroplast:
o Organelle where ______________________ occurs
o ____________________
o ______________ pigment

Cytoplasm:
o ________________________________
o Function: Assists in ________________________

Cell Wall:
o _____________________ cells
o ___________________ plant cell and maintains its ____________
o __________ found in animal cells
Differences Among Cells:
Two major Classes of Cells:
_____________________________ Cells:

Bacteria and Archaea

Small
1. ____________________________
a. DNA contained in a region called the _________________,
which is _________________________ from the
cytoplasm by a cell membrane
2. ____________________________________ or possess them in
a primitive undifferentiated condition
_______________________ Cell:

Protists, fungi, plants, and animals

Large
1. _______________________________
a. Contains _____________
2. Cell _____________________
Concept Check Summary:
1. What evidence led to the development of the cell theory?
2. How do the various kinds of microscopes differ as tools in the study
of cells?
3. Identify two similarities and two differences between plant and
animal cells.
4. How is a eukaryotic cell different from a prokaryotic cell?