cell organells, membrane, types of cells Flashcards
what are the types of cells
prokarayotic and eukaryotic
describe prokaryotic cells
smaller
unicellular
no nuclous
no membrande bound orgalles
circullar dna
BACTIRA
describe eukaryotic cells
larger
unicellular or multi
has nucleous
membrane bound organelles
linear dna
PLANTS,ANIMALS,FUNGI
what is an organelle
small structures inside a cell that have specific functions
what are the organelles in cells
cell membrane, cytoplasm, ribosome, dna
what does the cell membrane do
- found in all cells
maintains homeostasis by controlling what enters and leaves the cell
what is homeostaisis
the ability of the body to maintain a stable internal environment despite changes in external conditions.
describe cytoplasm
- found in all cells
it suspends organelles and provides an enviorment for chemical reactions within cell
what do ribosomes do
- all cells
they make proteins
what does the cyroskeleton do
- eukaryotic cells
provides structure for cells and movement of organelles
what does the nucleous do
- eukaryotic cells
- surronded by nuclear membrane
stores genetic information
what does rough ER do
- eukaryotic cells
makes and transports proteins
what does smooth ER do
- eukarotic cells
makes lipids and membranes
ex. detoxifies liver
what do golgi bodies do
- eukaryotic cells
prepares proteins and lipids for use in other places in or out of cell
what do mitochondrias do
- eukarotic cells
creates energy ( ATP) from food
what does the vacole do
- eukaryotic cells
stores food,water, or waste within cells
what do lysomes do
- eukarotic ( ANIMAL )
uses enzymes to digest bacteria, viruses, and old organelles
what does the centrosome do
- eukaryotic ( ANIMAL )
creates special structure called spindle fibers used in cell division
what does the cell wall do
- eukaryotic ( plant ) + prokaryotic
provides shape, structre and protection for cell
what does chloroplast do
- eukaryotic ( plant )
produce energy through photosynthesis and oxygen-release processes, which sustain plant growth and crop yield
what does the central vacole do
- eukarytoic ( plant )
stores water in order to maintain shape
what is the cell membrane also known as
plasma membrane
what does the cell membrane do
structure that surronds ALL cells
+ maintain homeostasis in cells by controlling what enters and exits
what is the cell membrane made of
phospolipids
what does hydrophilic head mean
water loving
what does hydrophilic tail mean
water fearing
what is the bilayer of a cell membrane
described as a fluid mosiac model ( many parts )
in the struture of a cell membrane, what do the phospolipids do
main componet of membrane and forms phospolipid bilayer
n the struture of a cell membrane, what does the proteins do
embedded in membrane and used for transport into and out of cell
in the struture of a cell membrane, what does carbohydrates do
attached to phhospolipids or proteins and used for cell identification. Helps immune system
in the struture of a cell membrane, what does cholesterol do
hydrophobic part of membrade. Regulates fluidity of membrane ( controlling how movable)
