unit 3: cytoskeleton & semiautonomous organelles Flashcards
Peroxisome 3 functions
- detoxification
- get rid of oxygen
- oxidize large fatty acids
peroxisome 1 structure
single membrane with crystalline core
mitochondria 1 function
powerhouse -> ATP
Mitochondria 3 structures
- double membrane
- the matrix
- circular DNA
why do we think mitochondria was once a bacteria? 2 reasons
- divides on its own
2. circular DNA
Chloroplast 1 function
solar powerhouse
Chloroplast (solar energy) 3 Structure
- triple membrane
- thylakoid
- circular DNA
Cytoskeleton has 3 things, what are they?
microtubule
microfilament/ actin filaments
intermediate filaments
Actin has 1 structure
small 2 stranded rope made from actin monomers
actin has 3 properties, how does it act
- flexible
- dynamic (changing)
- directional (+/-)
actin has 1 motor
myosin (fibrous proteins that form filaments of muscle cell)
actin has 3 functions
- cell division
- cell movement
- muscle contraction
what is actin cell division called
cytokinesis
what is actin cell movement called
lamellipodia
what filament is a jack of all trades/ does it all
actin
actin is like a what
rope
Intermediate Filaments is like a what
bungee cord
Intermediate Filament has 3 structures
- rolled up cable/ rope
- made up of diverse proteins
- crosslinked together
Intermediate Filament has 3 properties, what are they like
- elastic
- flexible
- permanent
Intermediate Filament has what motor
NONE
Intermediate Filament has 4 functions
- resist pulling forces
- give nucleus its shape
- connect skin cells
- hair, horns, claws
microtubules is like a what
big hallow tube
microtubule has 3 structures
- hollow tube
- made from tubulin subunits
- made at centrosome (made of 2 centrioles )
microtubule has 3 properties
- rigid
- dynamic (changing)
- directional (add and take away)
microtubule has 2 motors
- kinesin (motors move away from centrosome)
2. dynein (moves toward centrosome )
microtubule has 3 functions
- highway of the cell
- chromosome separation (spindle apparatus)
- cell motility (cilia, flagella)( part of cell moves but not the whole. ex. arms moving but you’re body doesn’t)
stroma
in chloroplast
space between thylakoid and inner membrane
thylakoid
in chloroplast
granum
in chloroplast
Calvin cycle is where
stroma (chloroplast)
krepe cycle is where
matrix (mitochondria)