Transcript CYTOPLASM - FLUID FILLED INTERIOR OF CELL

CELL PARTS
Ms. Ethridge, Ms. Milstead, Ms. Myers, Ms.
Palermo
OBJECTIVES
Identify the cell parts of an animal.
 Focus on the functions of the cell parts.

THE PARTS OF THE CELL
CYTOPLASM
- FLUID FILLED INTERIOR OF CELL
- SUSPENDS CELL ORGANELLES
THE NUCLEUS
Nucleus
-Surrounded by a nuclear envelope with nuclear pores
-Contains the genetic information (DNA) which exists as
chromatin in a non-dividing cell
-Controls all cell activities
Nucleolus
-In the center of the nucleus
-Produces the ribosomes
CELL MEMBRANE

The thin layer of protein
and fat that surrounds
the cell. The cell
membrane is semi
permeable, allowing
some substances to pass
into the cell and blocking
others.
CHROMOSOMES


Eukaryotes (cells with nuclei such
as those found in plants, yeast, and
animals) possess multiple large
linear chromosomes contained in
the cell's nucleus.
In the nuclear chromosomes of
eukaryotes, the uncondensed DNA
exists in a semi-ordered structure,
where it is wrapped around
histones (structural proteins),
forming a composite material called
chromatin.
Mitochondria
- Produces cellular energy in the form of ATP through a
process called cellular respiration (metabolizes glucose)
FIGURE 4.17
RIBOSOMES
-site of protein synthesis
-links amino acids together to
form proteins
ENDOPLASMIC RETICULUM
- TRANSPORT SYSTEM WITHIN THE CELL
- TRANSPORT CELL MATERIALS
- TWO TYPES:
ROUGH (WITH RIBOSOMES)
AND SMOOTH
Rough ER
-has ribosomes which give
it its "rough" appearance
-functions in protein
synthesis
Smooth ER
-mostly contains enzymes
that function in lipid
synthesis)
FIGURE 4.10A
GOLGI APPARATUS
--flattened stacks of
membranes
--collects, packages
and modifies cell
materials to be used
in other parts of the
cell or transported
out of the cell
LYSOSOMES
-digests and recycles old cell parts,
sometimes bacteria
-contain high levels of enzymes
Vacuole
-mainly
storage of water
in plant cells, some waste
- some animal cells have small
vacuoles
Centrioles
- used during cell division to move and separate
chromosomes
-
only found in animal cells
FIGURE 4.7A
FIGURE 4.13
FIGURE 4.16
FIGURE 4.17A
a. ________________
b. ________________
c. _________________
d. _________________
e. _________________
f. __________________
f.
OBJECTIVES
Identify the cell parts of an animal.
 Focus on the functions of the cell parts.
