prokaryotes vs. eukaryotes Flashcards
cell
basic unit of life
what is the basic unit of structure and function
cells
what is the cell theory (3 things)
- All living thing are made up of cells
- Cells are the basic unit of structure and function
- All cells come from preexisting cells
what do all cells come from
pre-existing cells
cells have 4 things in common:
cell membrane, cytoplasm, ribosomes, genetic material
organelle
tiny organ; specialized parts of a cell having a specific function
Cell Membrane aka
plasma membrane
cell membrane function
controls what enters and exits the cell
cell membrane structure
phospholipid bilayer with proteins embedded in
semi-permeable
only allows certain things to enter and exit the cell
Nucleus function
the control center of the cell; DNA is found here
Nucleus structure
large and circular near the center
nuclear membrane function
controls what goes in and out of the nucleus
nucleoplasm function
helps maintain the shape of nucleus
nucleoplasm structure
jelly like material found in the nucleus
Nucleolus function
makes ribosomes
Nucleolus structure
small and round located inside the nucleus
Chromatin function
forms chromosomes during cell division
Chromatin structure
uncoiled spaghetti like appearance
cytoplasm function
holds all organelles and cytoskeleton in place; moves nutrients through the cell
cytoplasm structure
jelly-like material found inside the cell membrane and outside the nucleus
cytoskeleton
A network of protein fibers extending through the cytoplasm
Microtubules function
motor proteins that move vesicles in the cell
Microtubules structure
Hollow tubes made of protein
microfilaments function
help maintain the shape and support the cell
microfilaments structure
Twisted chain of thin protein fibers
microtubules and microfilaments are both part of the …
cytoskeleton
Endoplasmic Reticulum (ER) function
Transports materials through the cell
what are the two types of ER’s
smooth and rough
rough ER
has ribosomes attached to help synthesize proteins
smooth ER
has nothing attached; synthesizes lipids and carbs and detoxification
ribosomes function
make proteins
ribosomes structure
small and lacks a membrane; can be free or attached
what do ribosomes link together by reading genetic code
amino acids
golgi function
modifies lipids and proteins and packages materials to send out of cell
golgi structure
flattened sac of membranes, look like pancakes
mitochondria function
Makes ATP (energy)
where does cellular respiration occur
in the mitochondria
mitochondria structure
bean shaped with folded inner membranes and double outer membrane
vacuole function
stores materials in cells
vacuole structure
fluid filled membranous sacs
is the vacuole bigger in the animal cell or the plant cell
plant
lysosomes function
digest food, bacteria, and dead worn out cells
lysosomes structure
small, round, membranous sac
Centrioles function
help form mitotic spindle in cell division
Centrioles structure
made of microtubules
cilia function
short hairlike structures that aid in movement
cell wall function
protection and support of the cell
cell wall structure
rigid outer layer made of cellulose
which organelles are special animal parts?
lysosomes, centrioles, and cilia
chloroplast function
uses energy from the sun to make food; where photosynthesis occurs
chloroplast structure
oval and green due to the pigment chlorophyll
chromoplast function
gives plants their bright colors
what are special plant cell parts
cell wall, chloroplast, chromoplast
is a prokaryotic cell multicellular on unicellular
unicellular
what is the only example of a prokaryote
eubacteria and archaebacteria
what is the domain that contains prokaryotes that live in extreme environments?
archaebacteria
what is the domain that is considered “true bacteria”
eubacteria
how are prokaryotes classified
by its shape
what are the types of prokaryotic cells
bacillus, coccus, and sprilla
what shape is bacillus
rod-shaped
what shape is coccus
spherical
what shape is sprilla
spiral & coiled
what is the outermost layer of a prokaryotic cell
capsule
what is the function of the capsule
protection from attacks
what makes up the cell wall
peptidoglycan
what is the DNA is a cell known as
nucleoid
plasmid
extra DNA gives the cell more characteristics
what is the function of the fimbriae
allows adhesion to surfaces
what is the flagella’s structure
whip-like
what is the function of the flagella
to aid in movement
do prokaryotes have a nucleus
no
do prokaryotes have organelles
no
are prokaryotes big or small
small
how long have prokaryotes been around
3.5 bil years
do prokaryotes have a lot of a single loop of DNA
single loop
do all prokaryotes have a cell wall
yes
do all prokaryotes have flagella
yes
are eukaryotes unicellular or multicellular
both
it is more common for a eukaryote to be unicellular or multicellular
multi
do eukaryotes have a nucleus
yes
are eukaryotes big or small
big
do eukaryotes have a lot of a single loop of DNA
lots
do eukaryotes have a cell wall
no
true or false: only plants have a cell wall
true
3 examples of a eukaryote
plants, animals, and fungus
what is the scientific name for the energy that the mitochondria creates
ATP
the path a protein takes through the cell
- ribosomes
- rough er
- golgi
- vacuole
- cell membrane
- lysosome
what makes plants green
chlorophyl