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Eukaryotic organelles(Animal Cells - revised)
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- 1NucleusContains DNA to store the information for protein synthesis.
Largest Organelle in the cell.
Has a double membrane called the nuclear envelope.
Holes called nuclear pores for transport in and out of the cells. - 2MitochondrionSite of ATP production by aerobic respiration.
Has double membranes, the inner membrane is folded to increase the surface area for the attachment ATP synthase.(cristae, fluid - matrix)
Cells that need a lot of energy has a lot of mitochondria; eg .muscle cells and epithelial cells. - 3Cell surface membraneControls the passage of molecules in and out of the cell
Made up of Phospholipids, specific transport protiens and carbohydrates arranged into what is defined as a fluid mosaic model.
All cell membranes have the same basic structure. The differention in composition is related to the structure. - 4LysosomeDigest damaged and worn out organelles. Single membrane and has no internal structure..
Contains a large number of hydrolytic enzymes which are lysozymes in an acid solution, which must be kept seperate from the rest of the cell contents to prevent them from digesting organelles. - 5RibosomesSite of protein synthesis from amino acids.
Made up of rRNA and two protien sub units.
Eukaryotic cell contains 80s ribosomes.
The two subunits of a ribosome are made of a combination of long strands of rRNA, dotted with protien chains. - 6Golgi ApparatusSorts modifies and packages molecules such as proteins and triglycerides into vesicles.
Golgi vesicles may be used to form lysosomes.
Composed of flattened sacs made up of membranes. The sacs are fluid filled and pinch off smaller vesicles at the ends.
One Golgi body in each cell.Cells with more E.g. protein secreting gland cells, antibody producing plasma cells. - 7Rough Endoplasmic ReticulumMade from membranes with ribosomes embedded.
Synthesises and transports proteins throughout the cell.
Folded into flattened sacs called cisternae. - 8Smooth Endoplasmic ReticulumRecombines glycerol and fatty acids to make triglycerides.
Packages triglycerides into vesicles and transports thems into golgi apparatus. - 9MicrovilliFinger like projections of the cell membrane, which greatly increase the surface area of the cell membrane, this speeds up absorbtions of digested food.
These are found on the epethelial cells of the small intestine. - 10CentriolesFunctions in mitosis to form a network of spindle fibres across the cell onto which the chromosomes attach. These fibres pull the chromatids apart during mitosis.
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- El usuario ha eliminado su información de asignaturas Fichas sobre Eukaryotic organelles(Animal Cells - revised), creado por Usuario eliminado el 30/11/2017.
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- Usuario eliminado · nov 2017
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- Creado por Irene Binil · 23 nov 2017
- Copiado por Irene Binil · 30 nov 2017
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