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7 Cards in this Set

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Nucleus
1. Size (diameter)
2. Parts
3. Function
1. 5 µm in diameter

2. 3 Parts:
a. Chromatin = Dna + proteins
b. Nucleolus = Ribosome synthesis
c. Nuclear Envelope = dbl membrane with pores

3. Directs protein synthesis (mRNA)
mRNA to Nuclear pores to Cytoplasm
Nuclear Envelope

1. Define
2. Parts
3. Function
1. Dbl membrane ea. w/ lipid bilayer & proteins

2a. Nuclear Lamina - inner membrane = shape
2b. Pore complex - regulates entry/exit of large macromolecules and particles

3. Separates contents of nucleus from cytoplasm
Pore Complex

1. Define
2. Function
Intricate protein structure b/w inner and outer nuclear membranes

Regulates entry/exit of large macromolecules and particles
Nuclear Lamina

1. Define
2. Function
1. Protein filaments that line the inner surface of nuclear envelope

2. Nucleus shape
Chromatin

1. Define
1. DNA + proteins in nucleus
Chromosomes

1. Define
2. #
Chromatin thick and condensed (coiled)

Somatic Cell = 46
Germ cell = 23
Nucleolus

1. Define
2. Function
1. Fibers adjoining part of the chromatin

2. Synthesis rRNA & assemble proteins