Nucleus, Inclusion,filament Flashcards
Filament function
Cytoskeleton
Separation of cells in division
Form microvilli (actin)
Utility of callmerbrane
Contraction of muscle und non muscle cells
Types of cell’ inclusions
Nutritive substances, pigments I crystalloids
Number of nucleus
Mononuclear
Binuclear some livercells
Multinucleated skeletal muscle, osteoclasts
Two types of nuclear stain
Deeply stained (condense)
Light stained(vesicular)
Nuclear components
Nuclear matrix (nucleosome)
Nucleolus
Nuclear membrane
Chromatin granules
Nuclear membrane in e/m
Double membranes with space in between and nuclear pores
Outer surface of nuclear membrane covered with?
Ribosome
Inner surface of nuclear membrane
Lamin intermediate filament used for attachment chromatin
Nuclear pore consist of?
Scaffold, transporter (central hub),, basket,thick filaments
Function of nuclear pores -
Allow passage for RNA
Passage for any molecule under 9 nm (no energy)
Larger than 9 mm energy needed
Chromatin granule. Under E/m
-fine fibrils
Chromatin granule under L/m
Basophilic
Feulgen positive
Types of heterochromatin
Chromatin islands(in nuclear sap), peripheral (nuclear membrane)chromatin,nucleolus- associated lie around nucleolus
Euchchromatin
Active uncoiled
Nucleolus const of?
Nucleolus organizer regions on (13,14,15,21,22) chromosomes
Pars fibrous (fine filaments) nonmature RNA
Pars granolas mature RNA