BIO 100 Lecture Notes - Lecture 5: Amoeboid Movement, Euglena, Flagellum
1 Feb 2017
School
Department
Course
Professor
Document Summary
History of microscopes: ro(cid:271)ert hooke"s mi(cid:272)ros(cid:272)ope (cid:894)1(cid:1010)(cid:1010)(cid:1009)(cid:895) Looked at the(cid:373) i(cid:374) the (cid:373)i(cid:272)ros(cid:272)ope a(cid:374)d (cid:272)alled the(cid:373) (cid:862)little roo(cid:373)s(cid:863: that"s how we got the (cid:374)a(cid:373)e (cid:272)ells, he was looking at the cell wall. Credited for the discovery of cells: a(cid:374)to(cid:374) va(cid:374) leeuwe(cid:374)hoek"s mi(cid:272)ros(cid:272)ope. Credited for discovering lots of different types of cells. Size of cells: smallest are bacteria, largest cell by volume: large egg from ostrich. Typical animal cells: about 1,000 in the width of your thumbnail. Cell movement: the amoeboid movement no cell wall because it changes it shape to move, flagellum(a) Ex: the euglena and sperm cells: cilia. Ex: paramecium: live in the water, not photosynthetic so they have to eat. Ear, nose, respiratory tract, women have them in the fallopian tubes near ovaries. Respiratory tract: conducting passages, someone who smokes for a couple decades loses all their cilia, cilia and flagellum are considered part of the cytoplasm.
