Cell Biology 7S.1

How many different types of cells make a human?
over 200
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cell prolifieration
cell growth, division and survival
2 of 14
cell specialisation
express unique set of proteins from shared genome, cell differentiation
3 of 14
cell interaction
cell communication, neurotransmission
4 of 14
cell movement
cell adhesion
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gene transcription can be regulated at multiple stages;
DNA, RNA transcript, mRNA in nuclus, mRNA in cytosol, inactive mRNA or Protein (active or inactive)
6 of 14
in prokaryotic cells genes can be switched off by
the repressor proteins (operon)
7 of 14
in prokaryotes, ligand-dependant DNA binding proteins
can turn transcription on or off
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G1 in cell cycle
cell grows and DNA ready for synthesis
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S in cell cycle
DNA is replicated
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G2 in cell cycle
special chemicals made to allow cell to prepare for mitosis by stimulating proteins to make spindles
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M in cell cycle
chromosomes split to ends of pole and then cell divides by cytokinesis
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4 stages of cell division
Prophase, Metaphase, Anaphase and Telophase
13 of 14
does recombination and crossing over of chromosomes happen in meiosis 1 or 2
14 of 14

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Card 2


cell prolifieration


cell growth, division and survival

Card 3


cell specialisation


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Card 4


cell interaction


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Card 5


cell movement


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