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7755707
Cell structure
Description
A level Biology Mind Map on Cell structure, created by Nathan Butler on 19/02/2017.
No tags specified
prokarotix/ eukaryotic cells
biology
a level
Mind Map by
Nathan Butler
, updated more than 1 year ago
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Created by
Nathan Butler
over 7 years ago
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Resource summary
Cell structure
Prokaryotic
Eg- Bacteria cell
Circular DNA
DNA in a single loop
Double stranded
Not enclosed in a nucleus
Mesosome
Thought to provide energy for the cell
Plasmid
Smaller section of DNA
Often contains gene for antibiotic resistant
Flagella
Enables movement
Pili
Enables exchange of DNA between cells
Capsule
Found on pathogenic bacteria
Mucous, jelly like outer coat
Protects bacteria from viruses
Prevents dessication (drying out)
Prevents host attacks
Eg- Immune system
Cell membrane
Cell wall
made up of peptidoglycan
Free to move DNA
No membrane bound organelles
No mitochondria
Eukaryotic
Eg- Animal/ Plant cell
Organelles specific to a plant cell
Cell wall
Vaccuole
Contains cell sap
Chloroplasts
Animal cell
Ribosomes
Where protein synthesis occurs
Translation
Rough ER
Where proteins travel through after creation
Distinguishable by Ribosomes dotted along its edge
Smooth ER
Involved in the production of lipids and steroids
Nucleus
Stores genetic information
Where semi conservative DNA replication occurs
Where transcription occurs
Nucleolus
Where Ribosomes are made
Golgi apparatus
Mitochondria
Cell membrane
Controls the movement of substances in and out of the cell
Phospholipid bilayer
Mitochondria
Site of the later stages of aerobic respiration
Lysosomes
Contains digestive enzymes
Involved in breakdown of unwanted structures
Centrioles
Comes in a pair
Involved in spindle formation during mitosis
Membrane bound nucleus
Membrane bound organelles
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