BIO 1130 Lecture Notes - Lecture 3: Centriole, Basal Body, Proterozoic

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

When looking at the characteristics of the three domains it cannot be determined which of the three was first. The genome was used to determine that bacteria were the first on the planet. Panspermia is still viable because a bacterium can go into a endospore state. Proterozoic: a minimum surface area is required to allow for nutrients to be able to pass trough and transport. Flagellar and cilliary movement: 9+2 formation, microtubules form a circle of nine pairs around two in the centre they shift up and down bending the flagellum back and forth. Photosynthetic: plant-like, algae, absorptive fungal-like, very rare in the protist world. Paramecium: cilia dedicated to movement as well as motility, molecular motor takes vacuole around the cell to distribute nutrients, ph changes from acidic to alkaline in digestion in order to digest all of the materials. Cirri: a collection of cilia that allow for walking movement.