BIOL 111 Lecture Notes - Lecture 5: Intracellular Parasite, Cell Membrane, Phagosome

• School: McGill University
• Department: Biology
• Course: BIOL 111
• Professor: Andrew Hendry

Document Summary

Supported by division of labour among organelles (like the economy) 10 eukaryote innovations: large cells, bacteria ~1 micron, eukarya cell 5 microns - 100 microns. Plant 40 microns, animal 10 microns: difficulty in replication, unlike smaller bacterial cell, longer diffusion path due to size, metabolism and cell work are slower due to larger size, large genome, high metabolic cost. Internal digestion in the vacuole is far more efficient. Smooth er supports synthesis of lipids and detoxification. Fusion of haploid gametes to diploid zygote: division in meiosis, restoring haploid gametes, meiosis most likely derived from mitosis and. No known living intermediates between prokaryotes and eukaryotes. Oldest known eukaryote fossil 1. 2bya bangiomorpha found in arctic canada. Modern eukaryotes are all fairly recent, diversity is very recent. 10 eukaryote groups: green algae chlorophyta, unicellular, filamentous, photosynthetic algae, land plants, cellulose cell wall structure.