Zusammenfassung der Ressource
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