NATS 1675 Lecture Notes - Lecture 2: Photosynthesis, Pectin, Protist

• School: York University
• Department: Natural Science
• Course: NATS 1675
• Professor: Robert Crippen

Document Summary

Domain archaea: prokaryotic cells, adapted to extreme environments, absorb or chemosynthesize food. Domain bacteria: prokaryotic cells, adapted to all environments, absorb, photosynthesize or chemosynthesize food, composed of eukaryotic cells. Kingdom protista: primarily single celled, occasionally colonial, sometimes multicellular, absorb, photosynthesize or ingest (eat) food. Kingdom fungi: mostly multicellular, cells surrounded by a cell wall (chitin, absorb food, multicellular. Kingdom plantae: cells surrounded by a cell wall (cellulose & pectin, photosynthesize food. Kingdom animalia: multicellular, no cell wall, ingest food (fig. Viruses: debated whether or not they are living- somewhere in between, vi(cid:396)uses (cid:373)odels of (cid:271)iologi(cid:272)al (cid:373)i(cid:374)i(cid:373)alis(cid:373). The(cid:455) (cid:272)o(cid:374)sist of a (cid:272)o(cid:396)e of ge(cid:374)eti(cid:272) (cid:373)ate(cid:396)ial (cid:894)eithe(cid:396) a dna o(cid:396) It is the (cid:272)o(cid:374)t(cid:396)ol (cid:272)e(cid:374)t(cid:396)e of the (cid:272)ell, a(cid:374)d ea(cid:272)h (cid:374)u(cid:272)leus (cid:272)o(cid:374)tai(cid:374)s a (cid:272)o(cid:373)plete set of "(cid:271)lue p(cid:396)i(cid:374)ts" fo(cid:396) a gi(cid:448)e(cid:374) o(cid:396)ga(cid:374)is(cid:373) o(cid:396) i(cid:374)di(cid:448)idual. Mo(cid:396)e spe(cid:272)ifi(cid:272)all(cid:455) the (cid:374)u(cid:272)leus: (cid:1005)(cid:895) pla(cid:455)s the (cid:272)e(cid:374)t(cid:396)al (cid:396)ole i(cid:374) (cid:272)ell di(cid:448)isio(cid:374), a(cid:374)d, (cid:1006)(cid:895) di(cid:396)e(cid:272)ts the (cid:373)eta(cid:271)oli(cid:272) a(cid:272)ti(cid:448)ities of the (cid:272)ell.