What is the difference between prokaryotic and eukaryotic cells?
Prokaryotes are always unicellular, while eukaryotes are often multi-celled organisms
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Name the 8 organelles in a eukaryotic cell?
Nucleus
ribosomes
RER
SER
Golgi apparatus
Mitochondria
Lysosomes
Centrioles
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What is the function of the nucleus?
It controls cell activity(it is surrounded by a nucleus envelope containing pores to allow organelles to move in and out
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What is the function of the Lysosomes?
It contains digestive Enzymes that breakdown invading cells and warn out cells
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What is the function of Ribosomes?
Site where protein synthesis happens
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What is the function of the RER?
To process proteins made in the ribosomes
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What is the function of the SER?
To synthesis and process lipids
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What is the function of the Golgi apparatus?
-It further process and packages proteins
-It makes lysozomes
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What is the function of the mitochondria?
It is the site of anaerobic respiration, where ATP is produced.
(oval shaped)
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What is the function of the centrioles?
They are need in cell division
(small hollow cylinders)
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What is the difference between ribosomes on the RER and ribosomes in the transport of proteins?
-Proteins made from the RER are to be excreted from the cell
- Free floating ribosomes make proteins to stay in the cell
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Describe the transport of Proteins from the RER?
1)Made on the RER, and then folded and processed
2) They then move in vesical to the Golgi apparatus
3)They are further processed
4)They then enter vesical and are excreted from the cell.
The cell prepares for division by:
DNA unravelling and replicating
Organelles replicating
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Explain Prophase?(3)
-the chromosome condenses, getting shorter and fatter
-the centrioles move to opposite sides of the cell, creating a network of spindle fibres
-the nuclear envelope breakdown
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Explain metaphase?
The chromosomes line up along the middle of the cell and become attached to the spindle fibres
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Explain anaphase?(2)
-The centromeres divide separating pair of sister chromatids
-They are pulled in opposite direction centromere first creating a V-shape
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Explain Telophase?
-Once the chromatids have reached either end of the cell they uncoil and become long again
-A nuclear envelope forms(2 nuclei now)
-the cytoplasm divides
-Creating 2 identical daughter cells
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Other cards in this set
Card 2
Front
What is the difference between prokaryotic and eukaryotic cells?
Back
Prokaryotes are always unicellular, while eukaryotes are often multi-celled organisms
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