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Transcript
Cell Ultrastructure Parts of a cell • Standard grade level required only 3 parts of an animal cell. • Now we have to learn around 15! What are the parts of a cell? • Nucleus – now includes: • Nuclear membrane • Nuclear pores • Nucleolus • The nucleolus is the dark patch inside the nucleus, ribosomes are made here New parts of a cell • The cytoplasm was basically anything which didn’t include the nucleus or cell membrane • It contains: • Mitochondria • Endoplasmic reticulum • Vesicles • Golgi apparatus Nucleus • Nucleolus makes ribosomes and RNA • Nucleus contains chromatin (DNA) • Nuclear membrane encloses the nucleus • Nuclear pore allows movement into and out of the nucleus Cell membrane • Controls what enters and exits the cell Golgi apparatus • Process and package substances before release from the cell Rough endoplasmic reticulum • Transports proteins made by the ribosomes attached to the surface Ribosomes • These are found free in the cytoplasm or attached to the rough ER. • They are where protein synthesis takes place Smooth endoplasmic reticulum • Produces steroids and lipids Mitochondria • Site of ATP production. ATP is the energy currency of the cell Centriole • They pull the chromosomes apart during cell division
