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Chapter 6 Tour of Cell - Coggle Diagram
Chapter 6 Tour of Cell
Discovery of cells
cell theory
all living things are made of cells
cell is basic unit of structure and function
all cells come from pre-existing cells
Microscopy
light microscope
visible light
Electron microscope
electrons, higher resolution
Transmission electron microscope
internal structure
Magnification vs Resolution
magnification=how large it appears
resolution=clarity of detail
Prokaryotic vs Eukaryotic Cells
Prokaryotic Cells
no nucleus
no membrane bound organelles
DNA in nucleoid region
smaller and simpler
ex: bacteria
Important Structures
plasma membrane
cell wall
ribosomes
flagella
pili
Eukaryotic Cells
true nucleus
membrane bound organelles
larger and more complex
Plants, Fungi, Animals , Protist
Nucleus & Ribosomes
Nucleus
contains DNA
surronded by nucleur envelope
has nuclear pores
contains nucleolus
Ribosomes
protein synthesis
free ribosomes-cytosol proteins
bound ribosomes- secreted/membrane proteins
Endomembrane Systems (a network of membranes working together)
Nuclear Envelope
Transport Vesticles
Plasma membrane
Rough ER
ribosomes attached
synthesis proteins
membrane production
Smooth ER
Lipid synthesis
detoxification
calcium storage
Golgi Apparatus
modifies, sorts, ships proteins
cis receiving trans shipping faces
Lysosomes
digestive enzymes
hydrolytic enzymes
recycling
Energy Organelles
mitochondria
cellular respiration
ATP production
double membrane
inner folds
matrix
Chloroplasts
photosynthesis
thylakoids
grana
stroma
Other cellular components
vacuoles
storage
central vacuole in plants
contractile vacuole in protist
Peroxisomes
break down fatty acids
detox harmful substances
Cytoskeleton
Network of protein fibers that
maintains shape
organizes organelles
moves cell
Microtubes
largest
tubulin protein
cilia & flagella
spindle fibers
Microfilaments
acitn
muscle contraction
cell movement
Intermediate Filaments
anchor organelles
structural support
Cilia & Flagella
movement
anchored by basal bodies
9 + 2 microtubule arrangement
Extracellular Components
Cell Wall
plants
Fungi
bacteria
ECM
Collagen
proteoglycans
Integrins
Cell communication
Cell Junctions
tight junctions
desmosomes
gap junctions
plasmodesmata
