Other organelles
- Created by: Emily Sulma
- Created on: 05-04-15 14:43
View mindmap
- Other organelles
- Mitochondria
- Genes are transcribed and translated within the mitochondria
- Contain their own DNA (mtDNA)
- Outer and inner membranes, cristae and matrix
- Site of aerobic respiration & ATP generation
- mtDNA is smaller in eukaryotes than in plants
- Chloroplasts
- Contain chlorophyll which absorbs light
- Have 3 membranes: porin, inter - membrane space and thylakoids
- Light powers ATP synthesis
- Contain their own DNA (cpDNA)
- Calvin cycle takes place in the stroma
- Vacuoles
- Used for turgor pressure in plants (keeping cell rigid)
- Used for storage and transport in animals
- Can help maintain cytosolic pH
- Lysosomes
- Can be acid hydrolases e.g. nucleases
- Can be heterophagic or autophagic
- Peroxisome
- Contain catalase
- Generate and degrade H2O2
- Acidic, and contain digestive enzymes
- Only found in animal cells
- Cytoskeleton/centrosome
- Microfilament attach to the membrane and provide support
- Centrosome is located near nucleus
- Cytoskeletal fibres are polymerised from subunits
- Centrosome forms mitotic spindle
- Cytoskeleton provides internal support
- Intermediate filaments support nucleus (lamins)
- Important for cell movement and movement of vesicles (microtubles)
- Mitochondria
Comments
No comments have yet been made