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Cell Theory
&
Cell History
Animal
Cells
Plant
Cells
Passive
Transport
Active
Transport
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This English scientist
coined the term “cell”
in 1663 after looking
at cork under a
microscope.
Robert Hooke
Known as the “Father
of Microscopy” this
scientist was the first
to view
microorganisms. He
coined the term
“animalcules.”
Anton van
Leeuwenhoek
Fill in the blanks:
_________ is credited
with determining all
plants are composed of
cells, and ___________ is
credited with determining
all animals are composed
of cells.
Schleiden – Plants
**Schleiden off the
leaves
Schwann – Animals
**Think swan = animal
In 1858, this
German pathologist
determined every
cell originates from
another existing cell
like it.
Rudolf Virchow
What are the 3
parts of the Cell
Theory?
1.All living things are
composed of cells.
2. Cells are the basic unit of
structure and function in
living things.
3. All cells are produced
from other cells.
This type of cell
membrane surrounds
an animal cell.
Selectively
Permeable
The slightly coiled
DNA found inside
of the nucleus.
Chromatin
These organelles are known
as the Power Houses of the
cell since they are involved in
the energy making process
and are found in greatest
numbers in cells that need
much energy.
Mitochondria
These small, round,
organelles are known
as the “recyclers” of
the cell.
Lysosomes
This organelle
within the nucleus
produces the
organelle that make
proteins. Name
both organelles.
Nucleolus is inside of
the nucleus. The
nucleolus produces
ribosomes.
Ribosomes make
proteins.
This is the jelly-like
interior of cells.
cytoplasm
Name the organelle
where photosynthesis
takes place.
chloroplasts
This rigid, abiotic
layer made of
cellulose acts as the
outermost layer of
plant cells.
cell wall
This organelle is the
final packaging site of
materials inside the cell.
**comparable to UPS**
Golgi bodies
(or Golgi apparatus)
Animal cells have
many of these
“storage” organelles.
Plant cells only have
1 large one.
Vacuole
True or False:
Passive transport
requires energy.
False!
In diffusion, molecules
move from an area of
_________
concentration to an
area of _________
concentration.
higher concentration
to
lower concentration
The movement of
water across a
selectively permeable
membrane from an
area of higher
concentration to an
area of lower
concentration.
osmosis
With osmosis, water
will always flow
toward this type of
environment.
Daily Double
Fill in the chart below for 500 extra points!
Environment
Inside the
Cell
Egg A
Egg B
hypertonic
hypotonic
hypotonic
hypertonic
Answer: Hypertonic
Plant cells like this
type of environment
because water fills the
large central vacuole
preventing the plant
from wilting.
hypotonic
True or False:
Active transport
requires the use of
energy.
True!
Fill in the blanks:
In Active Transport,
materials move from
an area of
_______concentration
to an area of
_______ concentration
lower concentration
to
higher concentration
Which form of active
transport is
performed by Protists
such as Amoebas and
Paramecia?
Transport by Engulfing
This form of active
transport allows your
nerves to transmit
signals to your brain.
Transport Proteins
Why do cells need
active transport?
1. cells may need a lot of
a particular material
2. cells may be trying to
get rid of a particular
material