1) Produce mRNA and tRNA for protein synthesis 2) Retain genetic material 3) Ribosomal RNA and ribosomes manufactured in the nucleolus
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What are the 2 main functions of the RER?
1) Provide large SA for synthesis of proteins and glycoproteins 2) Provide pathway for transport of materials (especially protein) throughout the cell.
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What are the 2 main functions of the SER?
1) Synthesise, store & transport lipids 2) Synthesise, store & transport carbohydrates
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What are the 5 main functions of the golgi apparatus? *
1) Produce glycoproteins 2) Produce secretory enzymes (abundant in epithelium) 3) Secrete carbohydrates (e.g. for plant cell walls) 4) Transport, modify & store lipids 5) Form Lysosomes
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What are lysozymes?
Enzymes that hydrolyse bacterial cell walls
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What are the 4 main functions of lysosomes?
1) Hydrolyse ingestions of phagocytes 2) Release enzymes to outside of cell to destroy material around cell 3) Digest worn out organelles 4) Autolysis
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What are the 3 main functions of the cell wall? *
1) Prevent cell bursting under pressure created by inward osmosis 2) Provide mechanical strength 3) Allow water to pass along it - aids movement of H2O through plant.
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What is the membrane around a vacuole called?
Tonoplast
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What does a plant vacuole contain?
A solution of mineral salts, sugars, amino acids, wastes and sometimes pigments.
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What are the 3 main functions of the vacuole?
1) Make plant cells turgid 2) Sugars & amino acids may be a temporary food store 3) Pigments may colour petals to attract pollinating insects
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How do bacteria store food reserves?
As glycogen granules and lipid droplets in the cytoplasm
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What is the advantage of plasmids to bacterial cells?
Can reproduce themselves and may give resistance to certain chemicals e.g. antibiotics
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What does the slime capsule allow groups of bacteria to do?
Stick together for protection from enzymes/chemicals
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Other cards in this set
Card 2
Front
What are the 2 main functions of the RER?
Back
1) Provide large SA for synthesis of proteins and glycoproteins 2) Provide pathway for transport of materials (especially protein) throughout the cell.
Card 3
Front
What are the 2 main functions of the SER?
Back
Card 4
Front
What are the 5 main functions of the golgi apparatus? *
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