Kategorier: Alle - ribosomes - chloroplast

af Puteri aisyah 6 år siden

112

EUKARYOTIC CELL

In eukaryotic cells, various organelles and structures work together to maintain cellular function and organization. The endoplasmic reticulum (ER) collaborates with the Golgi apparatus to process and transport proteins and lipids.

EUKARYOTIC CELL

ER communicates with golgi apparatus

vesicles move around by means of an extensive network or lattice of protein fibers

EUKARYOTIC CELL

microbodies and vacuole

microbodies
contain enzymes that participate in the preparatory or intermediate stages of biochemical reactions within the cell
vacuole
maintain turgor pressure
stores water, food, organic materials and enzymes

cytoskeleton

actin filament
protein fibers that play roles in cell division and shape
intermediate filament
protein fibers that provide stability of shape
microtubules
protein cylinder that moves organelle

Others

centriole
produce spindle fibre during cell division
short cylinder of microtubules
cilia
aid for movement
carry out cellular locomotion
flagella
push the cell forward
has rotating filaments that present in some bacteria

nucleus and ribosome

Ribosomes
Sites of protein synthesis
Found in all living cells
Complex molecular machines
chromatin
type of protein
diffuse threads containing DNA andptotein
nucleolus
produce subunits of ribosomes
nuclear envelope
double membrane with nuclear pore
enclosed the nucleus
nuclear pore
OUT : passage of ribosomal units out of nucleus
IN : permits passage of protein into nucleus

Energy-related organelle

chloroplast
producing sugar
carry out photosynthesis
mitochondrian
producing ATP energy
carry out cellular respiration

Endomembrane system

Golgi apparatus
processes , packages and secretes modified protein
membrane of ER
rough endoplasmic reticulum

studded with ribosomes

synthesize protein

smooth endoplasmic reticulum

synthesize lipid molecules

lacks of ribosome

vesicle
small membrane bound-sac that stores and transport subtances

transport vesicle

secretory vesicle