HONORS: Organelle PPT
• AT least ONE slide for each organelle
– A-j plus plasma membrane
• Must have
– Cell Type it is found in (ALL, Eukaryote, Plant, and/or
Animal)
– Location in cell
– Function
– Picture w/ URL link
7.3 Organelles
7.2 The Plasma Membrane
• Cell Type: ALL (pro/eu)
• Location: outer boundary or just under cell
wall of plant cells.
– Flexible boundary between cells &
environment
– Selectively permeable: ___
– Phospholipid Bilayer
– Cholesterol, Protein
www.biology.arizona.edu/.../ graphics/bilayer.giff
fig.cox.miami.edu/.../ 150/memb/fluidmosaic.jpg
nai.arc.nasa.gov/team/ images/2006/ciw/1829/1.jpg
Cell Wall
• Cell Type:Found in
plant cells and
some
prokaryotes
• Location: outside
the Plasma
membrane
• Function:
protection and
support
• In plants: Made of
cellulose
Nucleus
• Cell type: Eukaryotic (plant and animal)
• Funtions: Manages and controls all cell
functions
• Holds genetic information
• Nucleolus is found inside
– Makes ribosomes
iweb.tntech.edu/mcaprio/normalonionskin.jpg
www.palaeos.com/.../Lists/Images/nucleolus.jpg
Ribosomes
• Cell Type: ALL (pro/eu)
• Location: in nucleus, on Rough ER,
floating in cytoplasm
• Produces proteins
Endoplasmic Reticulum
• Cell Type: Eukaryotic
• Location: Rough – just outside the
nucleus, Smooth – out in cytoplasm
• Function – site of cellular chem. rxns
– Rough: helps ribosome build proteins
– Smooth: produce and stores lipids
HONORS LINK
Golgi Apparatus
HONORS
• Cell Type: Eukaryotic
• Location: in Cytoplasm near plasma
membrane
• Function: sorts and packages
proteins/lipids, works closely with ER
Vacuoles
• Cell Type:
Eukaryotes (in
Plants they are
LARGE! Rare in
animal cells,
small if so)
• Location:
• Function:
Storage of food,
enzymes, waste,
etc.
Lysosomes
• Cell type: Eukaryotes
• Location: throughout cell
• Function: digests unwanted materials and
waste. Can fuse with vacuoles.
• Tadpole Tails!
HONORS
Chloroplast
• Cell Type: Plant Cells ONLY
• Location: through out cell
• Function: carry out photosynthesis – light
E is turned into chemical E used by cells.
Mitochondria
• Cell Type: Eukaryotes
• Location: Through out
cell, some cells have A
LOT (liver cells)
• Function: converts food
(E from carbs/sugars)
into E usable by cell. makes cell batteries
• Manufacturing
– Nucleus
– Ribosomes
– ER (both)
– Golgi Apparatus
• Energy Processing
– Chloroplast
– Mitochondria
• Store/Breakdown • Support
– Lysosomes
– Vacuolues
– Cell wall
Honors: Smooth ER
• Store Ca+ needed for muscle contraction.
• Different types of cells make different
lipids
• Cells may need little or lots of Smooth ER
– Cells of ovaries and testes synthesize steroid
sex hormones
– Liver cells use SER to help process drugs, etc
BACK
• More drugs = more enzymes to degrade/ more
SER, increasing tolerance causing more drug to
get equal “high”
• Cannot differentiate between drugs, so tolerance
to other drugs also increases
BACK
Honors: Golgi Apparatus
• Receives and modifies substances from
the ER.
BACK
HONORS: Lysosomes
1.) RER packs enzymes
into vesicles
2.) Golgi refines enzymes
and releases mature
lysosomes
3.) Engulf or merge with
vacuole to diget
substance
4.) IF it can recycle, it will
Used extensively in
human embryos.