The Nucleus
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7 Terms
What is the overall function of the nucleus?
control center for cellular activity
What are the three basic strucutres?
nuclear envelope
nucleolus
chromatin
Nuclear Envelope (
outer membrane surrounding nucleus
separates internal & external (facilitates transport)
what are the structural characteristics of the nuclear envelope?
double membrane structure
outer membrane is continuous with the ER
Nuclear pores: opening channels; allow substances to enter/leave cell
Nucleolus
makes ribosomes
the number of nucleoli per nucleus vary and indicate protein synthetic activity of the cell
Chromatin
DNA and associated proteins exist as fine filaments of chromatin
house DNA/genetic material
What happens to chromatin during cell divsion?
chromatin coils tightly to form chromosomes
Note 
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