Chapter
6
Animations
Study Guide
Unit 2: The Cell
A Tour of the Cell
Review
All
organisms
are made of
, which are either
or
.
Cells
are generally
and can only be visualized through
microscopes.
Their small size enables them to have a high
area to
ratio,
to facilitate the exchange of materials into and out of the cell.
Eukaryotic cells have membrane-bound
and can be grouped into 2 main types:
animal
cells and
plant
cells.
The
contains most of the
material in the cell, and is bounded by a nuclear
with many
nuclear
.
The
endoplasmic
(ER) is continuous with the nuclear
.
ER, which contains
, produces
and
.
ER lacks ribosomes and are involved in
synthesis.
The
apparatus
is the cell's "Shipping and Receiving Center".
The
contains enzymes to carry out intracellular digestion by
(cell
eating
), and breaks down damaged organelles by
(self
eating
).
The membrane-bound
organelles
involved in cellular transport form the
system.
Plant cells contain a large
central
, which stores organic compounds and water.
are
the cell's "power plant" and perform
cellular
.
perform
in
plant
cells.
The
is a network of
fibers
which provides
for the cell, and enables
.
help maintain cell
, and guide the
movement
of cell components.
and
use
microtubules for
motion
in some cells.
called
and
are protein filaments that function in cellular motility, such as the contraction in
fibers.
Contraction of actin and myosin
, together with sol-gel
reversals,
also result in
crawling of a cell through the movements of
.
Cytoplasmic
in
cells also involve microfilaments to circulate nutrients among organelles.
Review:
Animal Cell Structure and Function.
Cell types.
Review:
Plant Cell Structure and Function.
Differences.
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