Organelles structure and function

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Centrosome and centrioloes structure
Two centrioles at right angles. Each centriole is composed of 9 microtubule triplets.
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Centrosome and centriole function
Movement of chromosomes during cell division and organisation of microtubules in cytoskeleton.
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Cytoskeleton structure
Proteins organised in fine filaments or slender tubes
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Cytoskeleton function
Strength and support. Movement of cellular structures and materials.
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Plasma membrane structure
Lipid bilayer containing phospholipids, steroids, proteins and carbohydrates
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Plasma membrane functions (5)
Isolation, protection, sensitivity, support, control entry and exit of materials
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Microvilli structure and function
Membrane extensions containing microfilaments. Increase surface area for absorption
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Cilia structure and function
Long extensions containing microtubule doublets in a 9+2 array. Movement of material over cell surface.
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Proteasomes structure and function
Hollow cylinders of proteolytic enzymes with regulatory proteins at their ends. Breakdown and recycling of damaged or abnormal intracellular proteins.
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Ribosomes
RNA and proteins. Protein synthesis
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Peroxisomes
Vesicles containing degredative enzymes. Catabolism of fats and organic compounds, neutralisation of toxic compounds generated in the process.
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Lysosomes
Vesicles conating digestive enzymes. Intracellular removsl of damaged organelles or pathogens.
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Golgi apparatus
Stacks of flattened membranes containing chambers. Storage, alteration and packaging of secretory products and lysosomal enzymes.
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Mitochondria
Double membrane with inner membrane folds enclosing important metabolic enzymes. Production of ATP.
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Endoplasmic reticulum (ER)
Network of membranous channels extending throughout the cytoplasm. Synthesis of secretory products and inracellular storage and tranport.
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Nucleus structure
Nucleoplasm containing nucleotides, enzymes, nucleoproteins and chromatin. Surrounded by a double membrane nuclear envelope.
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Nucleus function
Control of metabolism, storage and processing of genetic information and control of protein synthesis.
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Nucleolus
Site of RNA synthesis and assembly of ribosomal subunits
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Rough ER
Protein synthesis
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Smooth ER
Synthesises and secretes lipids and steroids
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Other cards in this set

Card 2

Front

Centrosome and centriole function

Back

Movement of chromosomes during cell division and organisation of microtubules in cytoskeleton.

Card 3

Front

Cytoskeleton structure

Back

Preview of the front of card 3

Card 4

Front

Cytoskeleton function

Back

Preview of the front of card 4

Card 5

Front

Plasma membrane structure

Back

Preview of the front of card 5
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