BIO130H1 Lecture : BIO130 II Lec 1 and 2.docx

• School: UTSG
• Department: Biology
• Course: BIO130H1
• Professor: Jane Mitchell

Document Summary

Important model system for study because similar things happen in human cells. It has a membrane enclosed nucleus: has plasma membrane that regulates the influx of materials to the cell, has cell wall (not found in animal cells) but it helps this organism protect itself from harsh environments. Multicellular organisms are composed of many different cell types: carry out very distinct functions. Typical animal cell has: extracellular matrix: helps give tissue support, found in many animal cells, lysosomes: helps to digest material, animal specific. Typical plant cell: has nucleus, er, golgi apparatus, peroxisome, mitochondria (nrg is produced by cell that fuels processes), plasma membrane, vacuole takes up more than 1/3 of cell volume, vacuole: Fluid filled area that helps provide turgor pressure against cell wall that keeps the plant rigid. Some single-celled organisms also have a vacuole: plant cell wall gives it a rigid structure. Cytoplasm: content of the cell outside the cell nucleus.