BIO210Y5 Chapter Notes - Chapter 7: Microstructure
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Dna is o(cid:374)e of the stru(cid:272)tures (cid:449)ithi(cid:374) a (cid:272)ell, it"s (cid:374)ot a (cid:272)ell itself. What"s i(cid:373)porta(cid:374)t a(cid:271)out is (cid:272)ell is its stru(cid:272)tures a(cid:374)d (cid:449)hat"s goi(cid:374)g o(cid:374) i(cid:374)side the membrane. Chemical level builds up the molecules of cells: how muscle cells are organized into muscle filaments, without this organizational structure of muscle cells within the fila(cid:373)e(cid:374)ts, the stret(cid:272)hi(cid:374)g a(cid:374)d (cid:272)o(cid:374)tra(cid:272)tio(cid:374) of (cid:373)us(cid:272)les (cid:449)ould(cid:374)"t (cid:271)e possible. Provide microstructure for stretching (lengthening and shortening of muscles) Tissue level (different ways cells can be organized and combined) Functionally, the 4 different types of tissues have different functions and are organized differently (and may have even more subdivisions in them) Epithelial tissues: line the inside and outside of the body. Connective tissues: needed to preserve the structure of the body: muscle tissues (skeletal, cardiac, smooth, neural tissue: most important tissue for conducting electrical impulses. From cells to tissues to organs to organ.
