module 2-cells Flashcards
magnification
size of image/actual size of object
transmission electron microscope
beam of electrons through specimen
expensive
time consuming
2d-black and white
lowest resolution and highest magnfication
scanning electron microscope
expensive
3d-black and white
high magnification and lowest resolution.
light microscope
2d black and white
lowest magnfication
highest resolution
lasar scanning confocal
3d specimens thickness
nucleus
contains genetic information
controls metabolic activities of he cell
nuclear envelope=nuclear pores, so move in and out
nucleous
responsible for producing ribosomes
mitochondria
site of sites where respiration occurs.
double membrane.
inner membrane=critase
fluid interior=matrix
also produces own enzymes.
vesicles
storage and transport roles
single membrane with fluid inside.
lysozymes
specialized forms of vesicles
break waste materials in cells
break pathogens.
cytoskelton
network of fibres for stability
has microfilaments, microtubules, and intermediate fibres.
microfilaments
cell movement/contraction
cytokinesis.
microtubules
movement of organelles, like spindle fibres.
intermediate fibres
mechanical strength to cells
flagella
enables cell mobilityc
cillia
mobile or stationary
9+2
smooth endoplasmic
responsible for lipid, carbohydrate synthsis
rough endoplasmic
ribosomes bind to surface, responsible for synthesis and transport of proteins.
ribosomes
free floating in cytoplasm/attached to endoplasmic. responsible for protein synthsis.
golgi appartus
modifies proteins and packages to vesicles
production of proteins
1)created on ribosomes to endoplasmic, passed to vesicles via golgi apparatus (cytoskeleton), and vesicles fuse with golgi apparatus, fuse with cell membrane, and then excreted by exocytosis.
some form lysozymes.
