Cellular Organelles (OCR A-Level Biology A): Flashcards
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Cytoplasm
Cytoplasm
Region between nucleus & membrane (cytosol + organelles)
Nucleus function
Nucleus function
Stores DNA; controls cell via RNA production
Nucleolus role
Nucleolus role
Constructs ribosomes
Rough ER function
Rough ER function
Synthesises proteins for secretion (has ribosomes)
Smooth ER function
Smooth ER function
Lipid synthesis & detoxifies drugs
Golgi apparatus role
Golgi apparatus role
Modifies & packages proteins/lipids for secretion
80S ribosomes
80S ribosomes
Found in eukaryotic cells (larger than 70S)
Cristae
Cristae
Folds of inner mitochondrial membrane; increase surface area
Thylakoids
Thylakoids
Flattened sacs in chloroplasts; stack into grana
Endosymbiotic evidence
Endosymbiotic evidence
Mitochondria & chloroplasts have 70S ribosomes & own DNA