BIOL 1050 Lecture Notes - Lecture 2: Monarda, Sporopollenin, Taproot

• School: University of Guelph
• Department: Biology
• Course: BIOL 1050
• Professor: Steve Bowley

Document Summary

Microsporangia in flowering plants are located in the: stamen. Primary root replaced by adventitious roots (one that will rises from the stem) Root system usually fibrous ( no main root) Sexual reproduction: plants have a problem, they are not mobile. The sporophytes cannot move around to find a mate: they have adapted various strategies, to move male gametes around, to disperse seed ex. Glucose polymers: callose, more complex than cellulose, (cid:1005),(cid:1007) li(cid:374)kages, molecule forms a helix, cellulose, (cid:1005),(cid:1008) li(cid:374)kages linear polymer. This depends on the genetics of the plant. Pollen- wide array of types and sizes: pe(cid:272)ies pe(cid:272)ifi(cid:272, ra(cid:374)ge f(cid:396)o(cid:373) (cid:1010) (cid:373) (cid:894)(cid:1004). (cid:1004)(cid:1004)(cid:1010) (cid:373)(cid:373)(cid:895) to o(cid:448)e(cid:396) (cid:1005)(cid:1004)(cid:1004) (cid:373) (cid:894)(cid:1004). (cid:1005) (cid:373)(cid:373)(cid:895, oute(cid:396) (cid:272)oati(cid:374)g (cid:894)e(cid:454)i(cid:374)e(cid:895, different patterns, composed of sporopollenin. Sporopollenin: compound surrounding the pollen, extremely resistant to degradation, physical, biological, and chemical degradation. Unknown composition, because it is unable to broken down: likely diverse and multicomponent. Pollen gives clues to history: palynology, pollen can be used to: