Transcript Eukaryotic Cells: The Inside Story

Eukaryotic Cells: The Inside
Story
Chapter 3-3
Cell Membrane- surrounds all cells
Keeps the cytoplasm
inside
Allows nutrients in and
wastes products out
Interacts with things
outside the cell
Cell Wall
Provides strength and
support
Made of cellulose in
plants and algae
Made of chitin in fungi
Bacteria also have
cell walls
Fungi cells have a cell wall made of
a chemical similar to that found in
the hard covering of insects called
chitin
Nucleus
Control center
Stores DNA which
has information on
how to make proteins
Contains the
nucleolus which
stores the materials
that will be used to
make ribosomes
Largest and most
visible organelle
Nucleus
Nuclear membrane
Nucleolus
DNA
F. The nucleus
Nucleolus stores the materials
that will be used later to make
ribosomes in the cytoplasm
nucleolus
DNA is the heredity material in the
cell
F.DNA
Ribosomes are protein-making
sites
Smallest but most
abundant organelles
Not covered by a
membrane
Uses amino acids to
make proteins
B. Ribosomes
Endoplasmic Reticulum (ER)
Makes lipids
internal delivery
system
May be covered by
ribosomes
Looks like flattened
sacks stacked side by
side or a cloth folded
back and forth
D. Endoplasmic reticulum
Mitochondria-cell’s powerhouse
Makes ATP
Surrounded by two
membranes
Needs oxygen
Liver and muscle cells
have the most
mitochondria
Bean-shaped
Breaks down food
molecules to release
energy
G. Mitochondria
Chloroplast is an energy-converting
organelle
Found in plants and
algae
Chlorophyll makes
them green
Photosynthesis takes
place in chloroplast
B. Enable plants to produce their
own food
D. Chloroplasts
Golgi complex-organelle where
proteins and other materials are
processed and transported out of
the cell
The Golgi complex processes,
packages, and transports material
out of eukaryotic cells
Vesicles
Membrane covered
compartments
Some pinch off from
the ER or Golgi
bodies
Others form when
part of the cell
membrane surrounds
an object outside a
cell
White blood cell engulfing
bacteria
When a smaller yeast cell is
engulfed by a white blood cell, a
vesicle is formed by the white blood
cell
Vacuole
Stores water and other materials
Plants have large vacuoles
A contractile vacuole squeezes
excess water out of a cell
G. Vacuole
Lysosomes
Digest food particles,
wastes, cell parts,
and foreign invaders
Contains enzymes
that break down
particles in vesicles
Causes the tail of a
tadpole to shrink and
disappear
Organelles found in plant and
animal cells
Nucleus
Golgi complex
Mitochondria
Lysosome
Endoplasmic reticulum
Cell membrane
Ribosomes
Organelles found only in plant cells
and not in animal cells
Chloroplast
Large vacuole
Cell wall
D.plant
A. Chloroplasts