Transcript NOT animal cells.

Cell Organelles
PARTS OF A CELL
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Plasma (cell) membrane
Cell Wall
Cytoplasm
Nucleus
Nuclear membrane
Ribosomes
Endoplasmic Reticulum
Golgi Apparatus
Mitochondria
Lysosome
Vacuole
Chloroplasts
The Plasma Membrane is like the SKIN
of the cell.
•The Cell Membrane controls what
enters and leaves the cell.
Selective permeablility-allows only
certain materials to pass through
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The Nucleus is like the BRAIN of the cell.
• The nucleus is the control center
of the cell.
• It contains the genetic information
for the cell in the form of DNA
called chromatin.
•
Nucleolus and Nuclear Membrane
• Nucleolus- produces ribosomes.
• Nuclear membrane-seperates nucleus
from the cytoplasm.
The Mighty
The “Mighty” Mitochondria is the
POWERHOUSE of the cell.
•Mitochondria - Makes
energy in the form of ATP
• ATP are produced to
“power” the cell.
The Endoplasmic Reticulum is the cells
DELIVERY SYSTEM.
•Endoplasmic Reticulum (ER) Delivers proteins.
•A tubular system connecting
the nuclear membrane to the
cell membrane.
The Golgi Apparatus is the PACKAGING
CENTER of the cell.
• Golgi Apparatus - Packages and modifies proteins.
Vacuoles are the STORAGE
SPACES for cells.
• Store food,
enzymes, wastes,
and other materials
needed by the cell.
• Plant cells have
large vacuoles for
water storage.
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Lysosomes
• Specialized vacuole
that digest and
break down waste.
• The “garbage man”
of the cell.
Ribosomes
• Protein synthesis
(makes proteins)
Cytoplasm
• Jello-like substance
where organelles
are embedded.
Centrioles
• Centrioles help in cell
division.
• They are found only in
animal cells.
The Cell Wall is like a suit of ARMOR
around the cell.
•Cell Wall - Supports the cell.
•It is found in plant cells
NOT animal cells.
Chloroplasts are where
PHOTOSYNTHESIS
occurs.
• Contain chlorophyll, a green pigment
that traps the energy from light.
• Found in plant cells and some protists,
NOT found in animal cells.
Differences in Plant Cells &
Animal Cells
Plant Cells
• have a cell
wall
• large vacuoles
for water
storage
• chloroplasts
for
Animal Cells
• Vacuoles
are
smaller
• Centrioles
for cell
division
DIVISION OF LABOR
• Many celled organisms are called
MULTI-CELLULAR. One cell
within an organism may be
adapted for movement, while
another cell carries out digestion.
Cell specialization allow the
individual cells to depend on each
other rather than trying to carry out
all life functions (division of labor).
LEVELS OF
ORGANIZATION
• Multi-cellular organisms are made up
of cells, tissues, organs, and then,
organ systems.
–Ex. Bone cell, bone tissue, the
bone is an organ, all the bones form
the skeletal system which is a part
of the 13 systems that make up a
human.
CELL TRANSPORT
• PASSIVE TRANSPORT
–DO NOT REQUIRE
ENERGY FROM THE
CELL.
• ACTIVE TRANSPORT
–REQUIRES ENERGY
BY THE CELL.
PASSIVE TRANSPORT
• DIFFUSION
–The movement of
particles from an area
of high concentration
to a low
Example of Diffusion:
concentration.
coffee aroma
• OSMOSIS
–The diffusion of
WATER molecules.
ACTIVE TRANSPORT
• Substances move from
an area of low
concentration to an area
of high concentration.
• Transport of materials
against a “concentration
gradient” requires
energy.
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Plant vs. Animal Cell
References
www.biology.arizona.edu/
www.cellsalive.com
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