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cells

TermDefinition
What does the nucleus contain This has a nuclear envelope Nuclear pores nucleoplasm chromosomes Nucleolus this is the site of rRNA production and makes ribosomes
What is the function of the nucleus Site of DNA replication and transcription (making mRNA) Contains the genetic code for each cell
qhat does the endoplasmic reticulum structure Rough and smooth ER both have folded membranes called cisternae Rough have ribosomes on the cisternae
What is the function of the ER RER protein synthesis SER synthesis and store lipids and carbohydrates
What is the structure of the Golgi apparatus and Vesicles Add carbohydrates to proteins to form glycoproteins Produce secretory enzymes Secrete carbohydrates Transport modify and store lipids Form lysosomes
What is the structure of lysosomes These are bags of digestive enzymes can contain 50 different enzymes
What is the function of lysosomes These hydrolyse pathogens in phagosomes Completley break down dead cells Exocytosis- release enzymes to outside of cell to destroy material Digest worn out organelles for reuse of material
Structure of Mitochondria Has a double membrane Inner membrane called cristae Fluid centre called the mitchondrial matrix Loop of mitochondrial DNA 70s ribosomes
What is the function of mitochondria Site of arepbic respiratoin Site of ATP production DNA to code for enzymes needed in respiration
Srtucture of ribosomes Small made up of 2 units of protien and rRNA 80s large ribosomes found it eukarytoic cells 70s ribosomes smaller ribosomes found in prokaryotic cells mitochondria and chloroplasrs
What is the function of ribosomes This is the site of protein synthesis
Structure of Vacuole Fluid surrounded by single membrane called tonoplast
What is the function of the vacuole These make cells turgid and therefore provide support Tempoary store of sugars and amino acids The pigments may colour petals to attract pollinators
The structutre of cell wall In plants made of microfibrills of the cellulose polymer Fungi made of chitin a nitrogen containing compound
What is the function of cell wall Provide structural strength to the cell wall
What is structure of cholroplast Surrounded by a double membrane Contains thylkoids Fluid filled stroma contains the enzynes for photosyntheiss found in plants
tThe function of choloroplast Site of photosyntheis
Structure of plasma membrane Found in all cells Phospholipids bilayer molecules embeded within and attached on the outside
What is function of plasma membrane Controlds the entrance and exit of molecules
Created by: yHya
 

 



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