, -Cells
Prokaryotic Eukaryotic
gibe small Cells (< Sym) larger cells (> 10ym)
No of cells always unicellular often multicellular
Membrane bound nucleus always have membrane
(x) any
no or
Organelles Membrane Boundorynel's bound organelle
DNA Circular re withought linear, associated with
protein Chromatin
Ribosomes Small (70s) large (00s)
NO Always .
(vx) Cytosuel
motility by rigid rovring motiling by relexible
Motility
flugellom . waring cillid or flagellum
mitosis meiosis
cell div binary fission or .
Reproduction always a sexual sexual or anxual .
Metabolic Pathway orge variety of memblic common metabolic
pathways .
Retur ,
, Endosymbiois
·
the endosymbiotic theory proposes that some eukaryotic cell organelles ,
such an
Mitochondria and chloroplasts ,
evolved from free-living prokaryotes .
Mitochondria
-
the mitochondria is an oval
shaped organelle with a
double membrane . The inner
membrane is folded into
structures known as cristae . The
inner area is known as the
matrix and contains the
enzymes needed for aerobic
respiration . Aerobic respiration
produce ATP .
Chloroplast
Chloroplasts are flattened structures
found in plant and algal cells . They
are surrounded by a double
membrane . They have an internal
system of membranes known as
thyhoids which are stuched to form
structures called grana .
These are linked
by lamellae . The function of the
Chloroplast is to
carry out Photosynthesis.
, SpecialisedCells
Single cell
·
Large surface area to volume ratio
All Cells
· exposed to environment
· All Cells Perform all functions
Multi-cellular organisms
· smaller surface area :
volume
· Not all cells in contact with external environment
cells perform functions .
·
Specialised to different
What is differentiation ?
-
When a cell becomes specialised to carry out a Particular function.
Mature Cell
young -
>
alrivision
>
-
own >
-
Cell cialisation >
-
·
unlikely or
Unable to
dividein .
Sperm
um
· the male nex cell involved in sexual reproduction .
·
Undulipodium (fuil) -
moves and propels the cell to the female egg carrying
,
The male chromosomes .
· Many Mitochondria -
releases energy for undulipodium movement
Prokaryotic Eukaryotic
gibe small Cells (< Sym) larger cells (> 10ym)
No of cells always unicellular often multicellular
Membrane bound nucleus always have membrane
(x) any
no or
Organelles Membrane Boundorynel's bound organelle
DNA Circular re withought linear, associated with
protein Chromatin
Ribosomes Small (70s) large (00s)
NO Always .
(vx) Cytosuel
motility by rigid rovring motiling by relexible
Motility
flugellom . waring cillid or flagellum
mitosis meiosis
cell div binary fission or .
Reproduction always a sexual sexual or anxual .
Metabolic Pathway orge variety of memblic common metabolic
pathways .
Retur ,
, Endosymbiois
·
the endosymbiotic theory proposes that some eukaryotic cell organelles ,
such an
Mitochondria and chloroplasts ,
evolved from free-living prokaryotes .
Mitochondria
-
the mitochondria is an oval
shaped organelle with a
double membrane . The inner
membrane is folded into
structures known as cristae . The
inner area is known as the
matrix and contains the
enzymes needed for aerobic
respiration . Aerobic respiration
produce ATP .
Chloroplast
Chloroplasts are flattened structures
found in plant and algal cells . They
are surrounded by a double
membrane . They have an internal
system of membranes known as
thyhoids which are stuched to form
structures called grana .
These are linked
by lamellae . The function of the
Chloroplast is to
carry out Photosynthesis.
, SpecialisedCells
Single cell
·
Large surface area to volume ratio
All Cells
· exposed to environment
· All Cells Perform all functions
Multi-cellular organisms
· smaller surface area :
volume
· Not all cells in contact with external environment
cells perform functions .
·
Specialised to different
What is differentiation ?
-
When a cell becomes specialised to carry out a Particular function.
Mature Cell
young -
>
alrivision
>
-
own >
-
Cell cialisation >
-
·
unlikely or
Unable to
dividein .
Sperm
um
· the male nex cell involved in sexual reproduction .
·
Undulipodium (fuil) -
moves and propels the cell to the female egg carrying
,
The male chromosomes .
· Many Mitochondria -
releases energy for undulipodium movement
